Home / 5,719.60-8,575.70-2,431.80

Finding the Fourth Proportional to 5,719.60, 8,575.70 and 2,431.80

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Solution

The fourth proportional to 5,719.60, 8,575.70 and 2,431.80 is: 3,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.60 : 8,575.70 = 2,431.80 : x
  2. Step 2: Convert to fraction form
    5,719.60/8,575.70 = 2,431.80/x
  3. Step 3: Cross multiply
    5,719.60x = 8,575.70 × 2,431.80
  4. Step 4: Simplify right side
    5,719.60x = 20,854,387.26
  5. Step 5: Solve for x
    x = 20,854,387.26/5,719.60
  6. Step 6: Final answer
    x = 3,646.13

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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.