Home / 5,475.72-8,209.16-2,187.92

Finding the Fourth Proportional to 5,475.72, 8,209.16 and 2,187.92

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Solution

The fourth proportional to 5,475.72, 8,209.16 and 2,187.92 is: 3,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.72 : 8,209.16 = 2,187.92 : x
  2. Step 2: Convert to fraction form
    5,475.72/8,209.16 = 2,187.92/x
  3. Step 3: Cross multiply
    5,475.72x = 8,209.16 × 2,187.92
  4. Step 4: Simplify right side
    5,475.72x = 17,960,985.35
  5. Step 5: Solve for x
    x = 17,960,985.35/5,475.72
  6. Step 6: Final answer
    x = 3,280.11

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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.