Home / 5,475.72-8,205.87-3,132.21

Finding the Fourth Proportional to 5,475.72, 8,205.87 and 3,132.21

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Solution

The fourth proportional to 5,475.72, 8,205.87 and 3,132.21 is: 4,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.72 : 8,205.87 = 3,132.21 : x
  2. Step 2: Convert to fraction form
    5,475.72/8,205.87 = 3,132.21/x
  3. Step 3: Cross multiply
    5,475.72x = 8,205.87 × 3,132.21
  4. Step 4: Simplify right side
    5,475.72x = 25,702,508.07
  5. Step 5: Solve for x
    x = 25,702,508.07/5,475.72
  6. Step 6: Final answer
    x = 4,693.90

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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.