Home / 3,116.15-4,300.12-1,937.20

Finding the Fourth Proportional to 3,116.15, 4,300.12 and 1,937.20

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Solution

The fourth proportional to 3,116.15, 4,300.12 and 1,937.20 is: 2,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.15 : 4,300.12 = 1,937.20 : x
  2. Step 2: Convert to fraction form
    3,116.15/4,300.12 = 1,937.20/x
  3. Step 3: Cross multiply
    3,116.15x = 4,300.12 × 1,937.20
  4. Step 4: Simplify right side
    3,116.15x = 8,330,192.46
  5. Step 5: Solve for x
    x = 8,330,192.46/3,116.15
  6. Step 6: Final answer
    x = 2,673.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.