Home / 7,129.92-10,696.32-2,516.16

Finding the Fourth Proportional to 7,129.92, 10,696.32 and 2,516.16

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Solution

The fourth proportional to 7,129.92, 10,696.32 and 2,516.16 is: 3,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.92 : 10,696.32 = 2,516.16 : x
  2. Step 2: Convert to fraction form
    7,129.92/10,696.32 = 2,516.16/x
  3. Step 3: Cross multiply
    7,129.92x = 10,696.32 × 2,516.16
  4. Step 4: Simplify right side
    7,129.92x = 26,913,652.53
  5. Step 5: Solve for x
    x = 26,913,652.53/7,129.92
  6. Step 6: Final answer
    x = 3,774.75

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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.