Home / 5,620.59-8,431.56-1,724.49

Finding the Fourth Proportional to 5,620.59, 8,431.56 and 1,724.49

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Solution

The fourth proportional to 5,620.59, 8,431.56 and 1,724.49 is: 2,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.59 : 8,431.56 = 1,724.49 : x
  2. Step 2: Convert to fraction form
    5,620.59/8,431.56 = 1,724.49/x
  3. Step 3: Cross multiply
    5,620.59x = 8,431.56 × 1,724.49
  4. Step 4: Simplify right side
    5,620.59x = 14,540,140.90
  5. Step 5: Solve for x
    x = 14,540,140.90/5,620.59
  6. Step 6: Final answer
    x = 2,586.94

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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.