Home / 5,432.13-8,145.72-2,144.64

Finding the Fourth Proportional to 5,432.13, 8,145.72 and 2,144.64

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Solution

The fourth proportional to 5,432.13, 8,145.72 and 2,144.64 is: 3,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.13 : 8,145.72 = 2,144.64 : x
  2. Step 2: Convert to fraction form
    5,432.13/8,145.72 = 2,144.64/x
  3. Step 3: Cross multiply
    5,432.13x = 8,145.72 × 2,144.64
  4. Step 4: Simplify right side
    5,432.13x = 17,469,636.94
  5. Step 5: Solve for x
    x = 17,469,636.94/5,432.13
  6. Step 6: Final answer
    x = 3,215.98

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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.