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Finding the Fourth Proportional to 5,167.21, 7,752.21 and 3,688.29

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Solution

The fourth proportional to 5,167.21, 7,752.21 and 3,688.29 is: 5,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.21 : 7,752.21 = 3,688.29 : x
  2. Step 2: Convert to fraction form
    5,167.21/7,752.21 = 3,688.29/x
  3. Step 3: Cross multiply
    5,167.21x = 7,752.21 × 3,688.29
  4. Step 4: Simplify right side
    5,167.21x = 28,592,398.62
  5. Step 5: Solve for x
    x = 28,592,398.62/5,167.21
  6. Step 6: Final answer
    x = 5,533.43

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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.