Home / 5,432.34-8,147.04-1,921.89

Finding the Fourth Proportional to 5,432.34, 8,147.04 and 1,921.89

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Solution

The fourth proportional to 5,432.34, 8,147.04 and 1,921.89 is: 2,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.34 : 8,147.04 = 1,921.89 : x
  2. Step 2: Convert to fraction form
    5,432.34/8,147.04 = 1,921.89/x
  3. Step 3: Cross multiply
    5,432.34x = 8,147.04 × 1,921.89
  4. Step 4: Simplify right side
    5,432.34x = 15,657,714.71
  5. Step 5: Solve for x
    x = 15,657,714.71/5,432.34
  6. Step 6: Final answer
    x = 2,882.31

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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.