Home / 3,080.76-4,247.82-2,489.46

Finding the Fourth Proportional to 3,080.76, 4,247.82 and 2,489.46

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Solution

The fourth proportional to 3,080.76, 4,247.82 and 2,489.46 is: 3,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.76 : 4,247.82 = 2,489.46 : x
  2. Step 2: Convert to fraction form
    3,080.76/4,247.82 = 2,489.46/x
  3. Step 3: Cross multiply
    3,080.76x = 4,247.82 × 2,489.46
  4. Step 4: Simplify right side
    3,080.76x = 10,574,777.98
  5. Step 5: Solve for x
    x = 10,574,777.98/3,080.76
  6. Step 6: Final answer
    x = 3,432.52

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Double scale
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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.