Home / 1,117.52-1,541.05-675.17

Finding the Fourth Proportional to 1,117.52, 1,541.05 and 675.17

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Solution

The fourth proportional to 1,117.52, 1,541.05 and 675.17 is: 931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.52 : 1,541.05 = 675.17 : x
  2. Step 2: Convert to fraction form
    1,117.52/1,541.05 = 675.17/x
  3. Step 3: Cross multiply
    1,117.52x = 1,541.05 × 675.17
  4. Step 4: Simplify right side
    1,117.52x = 1,040,469.04
  5. Step 5: Solve for x
    x = 1,040,469.04/1,117.52
  6. Step 6: Final answer
    x = 931.05

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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.