Home / 5,356.52-7,384.39-3,937.70

Finding the Fourth Proportional to 5,356.52, 7,384.39 and 3,937.70

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Solution

The fourth proportional to 5,356.52, 7,384.39 and 3,937.70 is: 5,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.52 : 7,384.39 = 3,937.70 : x
  2. Step 2: Convert to fraction form
    5,356.52/7,384.39 = 3,937.70/x
  3. Step 3: Cross multiply
    5,356.52x = 7,384.39 × 3,937.70
  4. Step 4: Simplify right side
    5,356.52x = 29,077,521.12
  5. Step 5: Solve for x
    x = 29,077,521.12/5,356.52
  6. Step 6: Final answer
    x = 5,428.44

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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.