Home / 1,512.61-2,251.42-1,478.59

Finding the Fourth Proportional to 1,512.61, 2,251.42 and 1,478.59

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Solution

The fourth proportional to 1,512.61, 2,251.42 and 1,478.59 is: 2,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.61 : 2,251.42 = 1,478.59 : x
  2. Step 2: Convert to fraction form
    1,512.61/2,251.42 = 1,478.59/x
  3. Step 3: Cross multiply
    1,512.61x = 2,251.42 × 1,478.59
  4. Step 4: Simplify right side
    1,512.61x = 3,328,915.84
  5. Step 5: Solve for x
    x = 3,328,915.84/1,512.61
  6. Step 6: Final answer
    x = 2,200.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.