Home / 3,913.29-5,868.45-1,139.04

Finding the Fourth Proportional to 3,913.29, 5,868.45 and 1,139.04

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Solution

The fourth proportional to 3,913.29, 5,868.45 and 1,139.04 is: 1,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.29 : 5,868.45 = 1,139.04 : x
  2. Step 2: Convert to fraction form
    3,913.29/5,868.45 = 1,139.04/x
  3. Step 3: Cross multiply
    3,913.29x = 5,868.45 × 1,139.04
  4. Step 4: Simplify right side
    3,913.29x = 6,684,399.29
  5. Step 5: Solve for x
    x = 6,684,399.29/3,913.29
  6. Step 6: Final answer
    x = 1,708.13

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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.