Home / 7,129.83-10,696.56-2,746.11

Finding the Fourth Proportional to 7,129.83, 10,696.56 and 2,746.11

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Solution

The fourth proportional to 7,129.83, 10,696.56 and 2,746.11 is: 4,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.83 : 10,696.56 = 2,746.11 : x
  2. Step 2: Convert to fraction form
    7,129.83/10,696.56 = 2,746.11/x
  3. Step 3: Cross multiply
    7,129.83x = 10,696.56 × 2,746.11
  4. Step 4: Simplify right side
    7,129.83x = 29,373,930.38
  5. Step 5: Solve for x
    x = 29,373,930.38/7,129.83
  6. Step 6: Final answer
    x = 4,119.86

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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.