Home / 5,909.28-8,864.46-2,985.72

Finding the Fourth Proportional to 5,909.28, 8,864.46 and 2,985.72

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Solution

The fourth proportional to 5,909.28, 8,864.46 and 2,985.72 is: 4,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.28 : 8,864.46 = 2,985.72 : x
  2. Step 2: Convert to fraction form
    5,909.28/8,864.46 = 2,985.72/x
  3. Step 3: Cross multiply
    5,909.28x = 8,864.46 × 2,985.72
  4. Step 4: Simplify right side
    5,909.28x = 26,466,795.51
  5. Step 5: Solve for x
    x = 26,466,795.51/5,909.28
  6. Step 6: Final answer
    x = 4,478.85

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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.