Home / 5,431.22-7,499.68-3,445.30

Finding the Fourth Proportional to 5,431.22, 7,499.68 and 3,445.30

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Solution

The fourth proportional to 5,431.22, 7,499.68 and 3,445.30 is: 4,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.22 : 7,499.68 = 3,445.30 : x
  2. Step 2: Convert to fraction form
    5,431.22/7,499.68 = 3,445.30/x
  3. Step 3: Cross multiply
    5,431.22x = 7,499.68 × 3,445.30
  4. Step 4: Simplify right side
    5,431.22x = 25,838,647.50
  5. Step 5: Solve for x
    x = 25,838,647.50/5,431.22
  6. Step 6: Final answer
    x = 4,757.43

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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.