Home / 3,931.47-5,897.34-1,158.12

Finding the Fourth Proportional to 3,931.47, 5,897.34 and 1,158.12

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Solution

The fourth proportional to 3,931.47, 5,897.34 and 1,158.12 is: 1,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.47 : 5,897.34 = 1,158.12 : x
  2. Step 2: Convert to fraction form
    3,931.47/5,897.34 = 1,158.12/x
  3. Step 3: Cross multiply
    3,931.47x = 5,897.34 × 1,158.12
  4. Step 4: Simplify right side
    3,931.47x = 6,829,827.40
  5. Step 5: Solve for x
    x = 6,829,827.40/3,931.47
  6. Step 6: Final answer
    x = 1,737.22

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Similar ratio
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1.5x scale

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.