Home / 2,083.20-3,124.80-2,047.20

Finding the Fourth Proportional to 2,083.20, 3,124.80 and 2,047.20

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Solution

The fourth proportional to 2,083.20, 3,124.80 and 2,047.20 is: 3,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.20 : 3,124.80 = 2,047.20 : x
  2. Step 2: Convert to fraction form
    2,083.20/3,124.80 = 2,047.20/x
  3. Step 3: Cross multiply
    2,083.20x = 3,124.80 × 2,047.20
  4. Step 4: Simplify right side
    2,083.20x = 6,397,090.56
  5. Step 5: Solve for x
    x = 6,397,090.56/2,083.20
  6. Step 6: Final answer
    x = 3,070.80

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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.