Home / 1,117.29-1,541.62-675.22

Finding the Fourth Proportional to 1,117.29, 1,541.62 and 675.22

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Solution

The fourth proportional to 1,117.29, 1,541.62 and 675.22 is: 931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.29 : 1,541.62 = 675.22 : x
  2. Step 2: Convert to fraction form
    1,117.29/1,541.62 = 675.22/x
  3. Step 3: Cross multiply
    1,117.29x = 1,541.62 × 675.22
  4. Step 4: Simplify right side
    1,117.29x = 1,040,932.66
  5. Step 5: Solve for x
    x = 1,040,932.66/1,117.29
  6. Step 6: Final answer
    x = 931.66

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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.