Home / 1,456.26-2,008.55-1,120.11

Finding the Fourth Proportional to 1,456.26, 2,008.55 and 1,120.11

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Solution

The fourth proportional to 1,456.26, 2,008.55 and 1,120.11 is: 1,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.26 : 2,008.55 = 1,120.11 : x
  2. Step 2: Convert to fraction form
    1,456.26/2,008.55 = 1,120.11/x
  3. Step 3: Cross multiply
    1,456.26x = 2,008.55 × 1,120.11
  4. Step 4: Simplify right side
    1,456.26x = 2,249,791.34
  5. Step 5: Solve for x
    x = 2,249,791.34/1,456.26
  6. Step 6: Final answer
    x = 1,544.91

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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.