Home / 6,921.68-10,376.28-2,538.11

Finding the Fourth Proportional to 6,921.68, 10,376.28 and 2,538.11

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Solution

The fourth proportional to 6,921.68, 10,376.28 and 2,538.11 is: 3,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.68 : 10,376.28 = 2,538.11 : x
  2. Step 2: Convert to fraction form
    6,921.68/10,376.28 = 2,538.11/x
  3. Step 3: Cross multiply
    6,921.68x = 10,376.28 × 2,538.11
  4. Step 4: Simplify right side
    6,921.68x = 26,336,088.15
  5. Step 5: Solve for x
    x = 26,336,088.15/6,921.68
  6. Step 6: Final answer
    x = 3,804.87

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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.