Home / 1,117.23-1,541.19-674.97

Finding the Fourth Proportional to 1,117.23, 1,541.19 and 674.97

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Solution

The fourth proportional to 1,117.23, 1,541.19 and 674.97 is: 931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.23 : 1,541.19 = 674.97 : x
  2. Step 2: Convert to fraction form
    1,117.23/1,541.19 = 674.97/x
  3. Step 3: Cross multiply
    1,117.23x = 1,541.19 × 674.97
  4. Step 4: Simplify right side
    1,117.23x = 1,040,257.01
  5. Step 5: Solve for x
    x = 1,040,257.01/1,117.23
  6. Step 6: Final answer
    x = 931.10

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1.5x scale

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.