Home / 3,127,114.80-4,690,672.20-2,131,786.80

Finding the Fourth Proportional to 3,127,114.80, 4,690,672.20 and 2,131,786.80

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Solution

The fourth proportional to 3,127,114.80, 4,690,672.20 and 2,131,786.80 is: 3,197,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127,114.80 : 4,690,672.20 = 2,131,786.80 : x
  2. Step 2: Convert to fraction form
    3,127,114.80/4,690,672.20 = 2,131,786.80/x
  3. Step 3: Cross multiply
    3,127,114.80x = 4,690,672.20 × 2,131,786.80
  4. Step 4: Simplify right side
    3,127,114.80x = 9,999,513,079,086.96
  5. Step 5: Solve for x
    x = 9,999,513,079,086.96/3,127,114.80
  6. Step 6: Final answer
    x = 3,197,680.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.