Home / 3,680.30-5,077.95-2,487.48

Finding the Fourth Proportional to 3,680.30, 5,077.95 and 2,487.48

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Solution

The fourth proportional to 3,680.30, 5,077.95 and 2,487.48 is: 3,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.30 : 5,077.95 = 2,487.48 : x
  2. Step 2: Convert to fraction form
    3,680.30/5,077.95 = 2,487.48/x
  3. Step 3: Cross multiply
    3,680.30x = 5,077.95 × 2,487.48
  4. Step 4: Simplify right side
    3,680.30x = 12,631,273.68
  5. Step 5: Solve for x
    x = 12,631,273.68/3,680.30
  6. Step 6: Final answer
    x = 3,432.13

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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.