Home / 1,902.15-2,853.17-1,127.46

Finding the Fourth Proportional to 1,902.15, 2,853.17 and 1,127.46

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Solution

The fourth proportional to 1,902.15, 2,853.17 and 1,127.46 is: 1,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.15 : 2,853.17 = 1,127.46 : x
  2. Step 2: Convert to fraction form
    1,902.15/2,853.17 = 1,127.46/x
  3. Step 3: Cross multiply
    1,902.15x = 2,853.17 × 1,127.46
  4. Step 4: Simplify right side
    1,902.15x = 3,216,829.41
  5. Step 5: Solve for x
    x = 3,216,829.41/1,902.15
  6. Step 6: Final answer
    x = 1,691.15

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1.5x scale

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.