Home / 1,729.07-2,590.20-1,142.29

Finding the Fourth Proportional to 1,729.07, 2,590.20 and 1,142.29

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Solution

The fourth proportional to 1,729.07, 2,590.20 and 1,142.29 is: 1,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.07 : 2,590.20 = 1,142.29 : x
  2. Step 2: Convert to fraction form
    1,729.07/2,590.20 = 1,142.29/x
  3. Step 3: Cross multiply
    1,729.07x = 2,590.20 × 1,142.29
  4. Step 4: Simplify right side
    1,729.07x = 2,958,753.08
  5. Step 5: Solve for x
    x = 2,958,753.08/1,729.07
  6. Step 6: Final answer
    x = 1,711.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.