Home / 1,237.17-1,845.59-1,148.78

Finding the Fourth Proportional to 1,237.17, 1,845.59 and 1,148.78

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Solution

The fourth proportional to 1,237.17, 1,845.59 and 1,148.78 is: 1,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.17 : 1,845.59 = 1,148.78 : x
  2. Step 2: Convert to fraction form
    1,237.17/1,845.59 = 1,148.78/x
  3. Step 3: Cross multiply
    1,237.17x = 1,845.59 × 1,148.78
  4. Step 4: Simplify right side
    1,237.17x = 2,120,175.75
  5. Step 5: Solve for x
    x = 2,120,175.75/1,237.17
  6. Step 6: Final answer
    x = 1,713.73

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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.