Home / 5,719.40-8,578.02-2,432.60

Finding the Fourth Proportional to 5,719.40, 8,578.02 and 2,432.60

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Solution

The fourth proportional to 5,719.40, 8,578.02 and 2,432.60 is: 3,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.40 : 8,578.02 = 2,432.60 : x
  2. Step 2: Convert to fraction form
    5,719.40/8,578.02 = 2,432.60/x
  3. Step 3: Cross multiply
    5,719.40x = 8,578.02 × 2,432.60
  4. Step 4: Simplify right side
    5,719.40x = 20,866,891.45
  5. Step 5: Solve for x
    x = 20,866,891.45/5,719.40
  6. Step 6: Final answer
    x = 3,648.44

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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.