Home / 7,639.24-10,542.36-4,282

Finding the Fourth Proportional to 7,639.24, 10,542.36 and 4,282

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Solution

The fourth proportional to 7,639.24, 10,542.36 and 4,282 is: 5,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.24 : 10,542.36 = 4,282 : x
  2. Step 2: Convert to fraction form
    7,639.24/10,542.36 = 4,282/x
  3. Step 3: Cross multiply
    7,639.24x = 10,542.36 × 4,282
  4. Step 4: Simplify right side
    7,639.24x = 45,142,385.52
  5. Step 5: Solve for x
    x = 45,142,385.52/7,639.24
  6. Step 6: Final answer
    x = 5,909.28

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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.