Home / 3,931.15-5,890.80-3,560.71

Finding the Fourth Proportional to 3,931.15, 5,890.80 and 3,560.71

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Solution

The fourth proportional to 3,931.15, 5,890.80 and 3,560.71 is: 5,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.15 : 5,890.80 = 3,560.71 : x
  2. Step 2: Convert to fraction form
    3,931.15/5,890.80 = 3,560.71/x
  3. Step 3: Cross multiply
    3,931.15x = 5,890.80 × 3,560.71
  4. Step 4: Simplify right side
    3,931.15x = 20,975,430.47
  5. Step 5: Solve for x
    x = 20,975,430.47/3,931.15
  6. Step 6: Final answer
    x = 5,335.70

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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.