Home / 5,621.30-8,432.10-1,725.71

Finding the Fourth Proportional to 5,621.30, 8,432.10 and 1,725.71

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Solution

The fourth proportional to 5,621.30, 8,432.10 and 1,725.71 is: 2,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.30 : 8,432.10 = 1,725.71 : x
  2. Step 2: Convert to fraction form
    5,621.30/8,432.10 = 1,725.71/x
  3. Step 3: Cross multiply
    5,621.30x = 8,432.10 × 1,725.71
  4. Step 4: Simplify right side
    5,621.30x = 14,551,317.13
  5. Step 5: Solve for x
    x = 14,551,317.13/5,621.30
  6. Step 6: Final answer
    x = 2,588.61

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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.