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Finding the Fourth Proportional to 1,242.93, 1,714.95 and 1,044.51

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Solution

The fourth proportional to 1,242.93, 1,714.95 and 1,044.51 is: 1,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.93 : 1,714.95 = 1,044.51 : x
  2. Step 2: Convert to fraction form
    1,242.93/1,714.95 = 1,044.51/x
  3. Step 3: Cross multiply
    1,242.93x = 1,714.95 × 1,044.51
  4. Step 4: Simplify right side
    1,242.93x = 1,791,277.20
  5. Step 5: Solve for x
    x = 1,791,277.20/1,242.93
  6. Step 6: Final answer
    x = 1,441.18

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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.