Home / 2,761.18-4,141.76-1,117.28

Finding the Fourth Proportional to 2,761.18, 4,141.76 and 1,117.28

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Solution

The fourth proportional to 2,761.18, 4,141.76 and 1,117.28 is: 1,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.18 : 4,141.76 = 1,117.28 : x
  2. Step 2: Convert to fraction form
    2,761.18/4,141.76 = 1,117.28/x
  3. Step 3: Cross multiply
    2,761.18x = 4,141.76 × 1,117.28
  4. Step 4: Simplify right side
    2,761.18x = 4,627,510.38
  5. Step 5: Solve for x
    x = 4,627,510.38/2,761.18
  6. Step 6: Final answer
    x = 1,675.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.