Home / 1,781.70-2,668.56-1,030.29

Finding the Fourth Proportional to 1,781.70, 2,668.56 and 1,030.29

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Solution

The fourth proportional to 1,781.70, 2,668.56 and 1,030.29 is: 1,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.70 : 2,668.56 = 1,030.29 : x
  2. Step 2: Convert to fraction form
    1,781.70/2,668.56 = 1,030.29/x
  3. Step 3: Cross multiply
    1,781.70x = 2,668.56 × 1,030.29
  4. Step 4: Simplify right side
    1,781.70x = 2,749,390.68
  5. Step 5: Solve for x
    x = 2,749,390.68/1,781.70
  6. Step 6: Final answer
    x = 1,543.13

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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.