Home / 3,680.90-5,079.18-2,488.48

Finding the Fourth Proportional to 3,680.90, 5,079.18 and 2,488.48

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Solution

The fourth proportional to 3,680.90, 5,079.18 and 2,488.48 is: 3,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.90 : 5,079.18 = 2,488.48 : x
  2. Step 2: Convert to fraction form
    3,680.90/5,079.18 = 2,488.48/x
  3. Step 3: Cross multiply
    3,680.90x = 5,079.18 × 2,488.48
  4. Step 4: Simplify right side
    3,680.90x = 12,639,437.85
  5. Step 5: Solve for x
    x = 12,639,437.85/3,680.90
  6. Step 6: Final answer
    x = 3,433.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.