Home / 1,264.40-1,743.69-1,125.89

Finding the Fourth Proportional to 1,264.40, 1,743.69 and 1,125.89

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Solution

The fourth proportional to 1,264.40, 1,743.69 and 1,125.89 is: 1,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.40 : 1,743.69 = 1,125.89 : x
  2. Step 2: Convert to fraction form
    1,264.40/1,743.69 = 1,125.89/x
  3. Step 3: Cross multiply
    1,264.40x = 1,743.69 × 1,125.89
  4. Step 4: Simplify right side
    1,264.40x = 1,963,203.13
  5. Step 5: Solve for x
    x = 1,963,203.13/1,264.40
  6. Step 6: Final answer
    x = 1,552.68

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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.