Home / 2,227.04-3,073.02-1,387.78

Finding the Fourth Proportional to 2,227.04, 3,073.02 and 1,387.78

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Solution

The fourth proportional to 2,227.04, 3,073.02 and 1,387.78 is: 1,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.04 : 3,073.02 = 1,387.78 : x
  2. Step 2: Convert to fraction form
    2,227.04/3,073.02 = 1,387.78/x
  3. Step 3: Cross multiply
    2,227.04x = 3,073.02 × 1,387.78
  4. Step 4: Simplify right side
    2,227.04x = 4,264,675.70
  5. Step 5: Solve for x
    x = 4,264,675.70/2,227.04
  6. Step 6: Final answer
    x = 1,914.95

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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.