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Finding the Fourth Proportional to 5,493.72, 7,578.70 and 5,281.54

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Solution

The fourth proportional to 5,493.72, 7,578.70 and 5,281.54 is: 7,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.72 : 7,578.70 = 5,281.54 : x
  2. Step 2: Convert to fraction form
    5,493.72/7,578.70 = 5,281.54/x
  3. Step 3: Cross multiply
    5,493.72x = 7,578.70 × 5,281.54
  4. Step 4: Simplify right side
    5,493.72x = 40,027,207.20
  5. Step 5: Solve for x
    x = 40,027,207.20/5,493.72
  6. Step 6: Final answer
    x = 7,285.99

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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.