Home / 1,731.18-2,391.64-1,135.09

Finding the Fourth Proportional to 1,731.18, 2,391.64 and 1,135.09

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Solution

The fourth proportional to 1,731.18, 2,391.64 and 1,135.09 is: 1,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.18 : 2,391.64 = 1,135.09 : x
  2. Step 2: Convert to fraction form
    1,731.18/2,391.64 = 1,135.09/x
  3. Step 3: Cross multiply
    1,731.18x = 2,391.64 × 1,135.09
  4. Step 4: Simplify right side
    1,731.18x = 2,714,726.80
  5. Step 5: Solve for x
    x = 2,714,726.80/1,731.18
  6. Step 6: Final answer
    x = 1,568.13

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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.