Home / 5,385.53-7,432.09-3,289.66

Finding the Fourth Proportional to 5,385.53, 7,432.09 and 3,289.66

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Solution

The fourth proportional to 5,385.53, 7,432.09 and 3,289.66 is: 4,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.53 : 7,432.09 = 3,289.66 : x
  2. Step 2: Convert to fraction form
    5,385.53/7,432.09 = 3,289.66/x
  3. Step 3: Cross multiply
    5,385.53x = 7,432.09 × 3,289.66
  4. Step 4: Simplify right side
    5,385.53x = 24,449,022.39
  5. Step 5: Solve for x
    x = 24,449,022.39/5,385.53
  6. Step 6: Final answer
    x = 4,539.76

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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.