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Finding the Fourth Proportional to 5,381.25, 7,427 and 4,483.56

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Solution

The fourth proportional to 5,381.25, 7,427 and 4,483.56 is: 6,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.25 : 7,427 = 4,483.56 : x
  2. Step 2: Convert to fraction form
    5,381.25/7,427 = 4,483.56/x
  3. Step 3: Cross multiply
    5,381.25x = 7,427 × 4,483.56
  4. Step 4: Simplify right side
    5,381.25x = 33,299,400.12
  5. Step 5: Solve for x
    x = 33,299,400.12/5,381.25
  6. Step 6: Final answer
    x = 6,188.04

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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.