Home / 5,432.64-8,144.30-2,309.79

Finding the Fourth Proportional to 5,432.64, 8,144.30 and 2,309.79

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Solution

The fourth proportional to 5,432.64, 8,144.30 and 2,309.79 is: 3,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.64 : 8,144.30 = 2,309.79 : x
  2. Step 2: Convert to fraction form
    5,432.64/8,144.30 = 2,309.79/x
  3. Step 3: Cross multiply
    5,432.64x = 8,144.30 × 2,309.79
  4. Step 4: Simplify right side
    5,432.64x = 18,811,623.11
  5. Step 5: Solve for x
    x = 18,811,623.11/5,432.64
  6. Step 6: Final answer
    x = 3,462.70

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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.