Home / 7,077.74-10,620.70-2,916.97

Finding the Fourth Proportional to 7,077.74, 10,620.70 and 2,916.97

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Solution

The fourth proportional to 7,077.74, 10,620.70 and 2,916.97 is: 4,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.74 : 10,620.70 = 2,916.97 : x
  2. Step 2: Convert to fraction form
    7,077.74/10,620.70 = 2,916.97/x
  3. Step 3: Cross multiply
    7,077.74x = 10,620.70 × 2,916.97
  4. Step 4: Simplify right side
    7,077.74x = 30,980,229.43
  5. Step 5: Solve for x
    x = 30,980,229.43/7,077.74
  6. Step 6: Final answer
    x = 4,377.14

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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.