Home / 1,637.97-2,261.27-1,079.38

Finding the Fourth Proportional to 1,637.97, 2,261.27 and 1,079.38

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Solution

The fourth proportional to 1,637.97, 2,261.27 and 1,079.38 is: 1,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.97 : 2,261.27 = 1,079.38 : x
  2. Step 2: Convert to fraction form
    1,637.97/2,261.27 = 1,079.38/x
  3. Step 3: Cross multiply
    1,637.97x = 2,261.27 × 1,079.38
  4. Step 4: Simplify right side
    1,637.97x = 2,440,756.35
  5. Step 5: Solve for x
    x = 2,440,756.35/1,637.97
  6. Step 6: Final answer
    x = 1,490.11

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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.