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Finding the Fourth Proportional to 3,931.04, 5,425.02 and 2,358.92

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Solution

The fourth proportional to 3,931.04, 5,425.02 and 2,358.92 is: 3,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.04 : 5,425.02 = 2,358.92 : x
  2. Step 2: Convert to fraction form
    3,931.04/5,425.02 = 2,358.92/x
  3. Step 3: Cross multiply
    3,931.04x = 5,425.02 × 2,358.92
  4. Step 4: Simplify right side
    3,931.04x = 12,797,188.18
  5. Step 5: Solve for x
    x = 12,797,188.18/3,931.04
  6. Step 6: Final answer
    x = 3,255.42

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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.