Home / 4,872.61-7,309.05-1,585.90

Finding the Fourth Proportional to 4,872.61, 7,309.05 and 1,585.90

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Solution

The fourth proportional to 4,872.61, 7,309.05 and 1,585.90 is: 2,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.61 : 7,309.05 = 1,585.90 : x
  2. Step 2: Convert to fraction form
    4,872.61/7,309.05 = 1,585.90/x
  3. Step 3: Cross multiply
    4,872.61x = 7,309.05 × 1,585.90
  4. Step 4: Simplify right side
    4,872.61x = 11,591,422.40
  5. Step 5: Solve for x
    x = 11,591,422.40/4,872.61
  6. Step 6: Final answer
    x = 2,378.89

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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.