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Finding the Fourth Proportional to 3,927.60, 5,891.40 and 3,903.30

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Solution

The fourth proportional to 3,927.60, 5,891.40 and 3,903.30 is: 5,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.60 : 5,891.40 = 3,903.30 : x
  2. Step 2: Convert to fraction form
    3,927.60/5,891.40 = 3,903.30/x
  3. Step 3: Cross multiply
    3,927.60x = 5,891.40 × 3,903.30
  4. Step 4: Simplify right side
    3,927.60x = 22,995,901.62
  5. Step 5: Solve for x
    x = 22,995,901.62/3,927.60
  6. Step 6: Final answer
    x = 5,854.95

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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.