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Finding the Fourth Proportional to 5,028.60, 7,532.10 and 4,380.60

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Solution

The fourth proportional to 5,028.60, 7,532.10 and 4,380.60 is: 6,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.60 : 7,532.10 = 4,380.60 : x
  2. Step 2: Convert to fraction form
    5,028.60/7,532.10 = 4,380.60/x
  3. Step 3: Cross multiply
    5,028.60x = 7,532.10 × 4,380.60
  4. Step 4: Simplify right side
    5,028.60x = 32,995,117.26
  5. Step 5: Solve for x
    x = 32,995,117.26/5,028.60
  6. Step 6: Final answer
    x = 6,561.49

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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.