Home / 1,739.97-2,400.19-1,242.88

Finding the Fourth Proportional to 1,739.97, 2,400.19 and 1,242.88

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Solution

The fourth proportional to 1,739.97, 2,400.19 and 1,242.88 is: 1,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.97 : 2,400.19 = 1,242.88 : x
  2. Step 2: Convert to fraction form
    1,739.97/2,400.19 = 1,242.88/x
  3. Step 3: Cross multiply
    1,739.97x = 2,400.19 × 1,242.88
  4. Step 4: Simplify right side
    1,739.97x = 2,983,139.04
  5. Step 5: Solve for x
    x = 2,983,139.04/1,739.97
  6. Step 6: Final answer
    x = 1,714.48

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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.