Home / 7,139.18-10,696.95-2,456.66

Finding the Fourth Proportional to 7,139.18, 10,696.95 and 2,456.66

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Solution

The fourth proportional to 7,139.18, 10,696.95 and 2,456.66 is: 3,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.18 : 10,696.95 = 2,456.66 : x
  2. Step 2: Convert to fraction form
    7,139.18/10,696.95 = 2,456.66/x
  3. Step 3: Cross multiply
    7,139.18x = 10,696.95 × 2,456.66
  4. Step 4: Simplify right side
    7,139.18x = 26,278,795.93
  5. Step 5: Solve for x
    x = 26,278,795.93/7,139.18
  6. Step 6: Final answer
    x = 3,680.93

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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.