Home / 6,921.09-10,377.45-2,761.74

Finding the Fourth Proportional to 6,921.09, 10,377.45 and 2,761.74

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Solution

The fourth proportional to 6,921.09, 10,377.45 and 2,761.74 is: 4,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.09 : 10,377.45 = 2,761.74 : x
  2. Step 2: Convert to fraction form
    6,921.09/10,377.45 = 2,761.74/x
  3. Step 3: Cross multiply
    6,921.09x = 10,377.45 × 2,761.74
  4. Step 4: Simplify right side
    6,921.09x = 28,659,818.76
  5. Step 5: Solve for x
    x = 28,659,818.76/6,921.09
  6. Step 6: Final answer
    x = 4,140.94

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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.