Home / 3,717.12-5,129.42-2,038.20

Finding the Fourth Proportional to 3,717.12, 5,129.42 and 2,038.20

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Solution

The fourth proportional to 3,717.12, 5,129.42 and 2,038.20 is: 2,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.12 : 5,129.42 = 2,038.20 : x
  2. Step 2: Convert to fraction form
    3,717.12/5,129.42 = 2,038.20/x
  3. Step 3: Cross multiply
    3,717.12x = 5,129.42 × 2,038.20
  4. Step 4: Simplify right side
    3,717.12x = 10,454,773.65
  5. Step 5: Solve for x
    x = 10,454,773.65/3,717.12
  6. Step 6: Final answer
    x = 2,812.60

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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.