Home / 5,104.38-7,640.66-3,931.35

Finding the Fourth Proportional to 5,104.38, 7,640.66 and 3,931.35

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Solution

The fourth proportional to 5,104.38, 7,640.66 and 3,931.35 is: 5,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.38 : 7,640.66 = 3,931.35 : x
  2. Step 2: Convert to fraction form
    5,104.38/7,640.66 = 3,931.35/x
  3. Step 3: Cross multiply
    5,104.38x = 7,640.66 × 3,931.35
  4. Step 4: Simplify right side
    5,104.38x = 30,038,089.03
  5. Step 5: Solve for x
    x = 30,038,089.03/5,104.38
  6. Step 6: Final answer
    x = 5,884.77

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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.