Home / 5,432.13-8,142.80-1,731.65

Finding the Fourth Proportional to 5,432.13, 8,142.80 and 1,731.65

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Solution

The fourth proportional to 5,432.13, 8,142.80 and 1,731.65 is: 2,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.13 : 8,142.80 = 1,731.65 : x
  2. Step 2: Convert to fraction form
    5,432.13/8,142.80 = 1,731.65/x
  3. Step 3: Cross multiply
    5,432.13x = 8,142.80 × 1,731.65
  4. Step 4: Simplify right side
    5,432.13x = 14,100,430.25
  5. Step 5: Solve for x
    x = 14,100,430.25/5,432.13
  6. Step 6: Final answer
    x = 2,595.75

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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.