Home / 1,494.14-2,240.30-671.28

Finding the Fourth Proportional to 1,494.14, 2,240.30 and 671.28

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Solution

The fourth proportional to 1,494.14, 2,240.30 and 671.28 is: 1,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.14 : 2,240.30 = 671.28 : x
  2. Step 2: Convert to fraction form
    1,494.14/2,240.30 = 671.28/x
  3. Step 3: Cross multiply
    1,494.14x = 2,240.30 × 671.28
  4. Step 4: Simplify right side
    1,494.14x = 1,503,868.58
  5. Step 5: Solve for x
    x = 1,503,868.58/1,494.14
  6. Step 6: Final answer
    x = 1,006.51

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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.