Home / 4,389.20-6,581.88-1,310.48

Finding the Fourth Proportional to 4,389.20, 6,581.88 and 1,310.48

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Solution

The fourth proportional to 4,389.20, 6,581.88 and 1,310.48 is: 1,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.20 : 6,581.88 = 1,310.48 : x
  2. Step 2: Convert to fraction form
    4,389.20/6,581.88 = 1,310.48/x
  3. Step 3: Cross multiply
    4,389.20x = 6,581.88 × 1,310.48
  4. Step 4: Simplify right side
    4,389.20x = 8,625,422.10
  5. Step 5: Solve for x
    x = 8,625,422.10/4,389.20
  6. Step 6: Final answer
    x = 1,965.15

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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.