Home / 1,678.65-2,519.25-1,150.29

Finding the Fourth Proportional to 1,678.65, 2,519.25 and 1,150.29

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Solution

The fourth proportional to 1,678.65, 2,519.25 and 1,150.29 is: 1,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.65 : 2,519.25 = 1,150.29 : x
  2. Step 2: Convert to fraction form
    1,678.65/2,519.25 = 1,150.29/x
  3. Step 3: Cross multiply
    1,678.65x = 2,519.25 × 1,150.29
  4. Step 4: Simplify right side
    1,678.65x = 2,897,868.08
  5. Step 5: Solve for x
    x = 2,897,868.08/1,678.65
  6. Step 6: Final answer
    x = 1,726.31

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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.