Home / 5,421.48-8,134.17-2,132.76

Finding the Fourth Proportional to 5,421.48, 8,134.17 and 2,132.76

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Solution

The fourth proportional to 5,421.48, 8,134.17 and 2,132.76 is: 3,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.48 : 8,134.17 = 2,132.76 : x
  2. Step 2: Convert to fraction form
    5,421.48/8,134.17 = 2,132.76/x
  3. Step 3: Cross multiply
    5,421.48x = 8,134.17 × 2,132.76
  4. Step 4: Simplify right side
    5,421.48x = 17,348,232.41
  5. Step 5: Solve for x
    x = 17,348,232.41/5,421.48
  6. Step 6: Final answer
    x = 3,199.91

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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.