Home / 2,248.78-3,102.58-1,253.88

Finding the Fourth Proportional to 2,248.78, 3,102.58 and 1,253.88

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Solution

The fourth proportional to 2,248.78, 3,102.58 and 1,253.88 is: 1,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.78 : 3,102.58 = 1,253.88 : x
  2. Step 2: Convert to fraction form
    2,248.78/3,102.58 = 1,253.88/x
  3. Step 3: Cross multiply
    2,248.78x = 3,102.58 × 1,253.88
  4. Step 4: Simplify right side
    2,248.78x = 3,890,263.01
  5. Step 5: Solve for x
    x = 3,890,263.01/2,248.78
  6. Step 6: Final answer
    x = 1,729.94

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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.