Home / 1,117.33-1,541.94-674.97

Finding the Fourth Proportional to 1,117.33, 1,541.94 and 674.97

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Solution

The fourth proportional to 1,117.33, 1,541.94 and 674.97 is: 931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.33 : 1,541.94 = 674.97 : x
  2. Step 2: Convert to fraction form
    1,117.33/1,541.94 = 674.97/x
  3. Step 3: Cross multiply
    1,117.33x = 1,541.94 × 674.97
  4. Step 4: Simplify right side
    1,117.33x = 1,040,763.24
  5. Step 5: Solve for x
    x = 1,040,763.24/1,117.33
  6. Step 6: Final answer
    x = 931.47

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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.