Home / 6,876.28-10,318.38-2,981.08

Finding the Fourth Proportional to 6,876.28, 10,318.38 and 2,981.08

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Solution

The fourth proportional to 6,876.28, 10,318.38 and 2,981.08 is: 4,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.28 : 10,318.38 = 2,981.08 : x
  2. Step 2: Convert to fraction form
    6,876.28/10,318.38 = 2,981.08/x
  3. Step 3: Cross multiply
    6,876.28x = 10,318.38 × 2,981.08
  4. Step 4: Simplify right side
    6,876.28x = 30,759,916.25
  5. Step 5: Solve for x
    x = 30,759,916.25/6,876.28
  6. Step 6: Final answer
    x = 4,473.34

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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.