Home / 6,377.40-9,569.79-2,679.30

Finding the Fourth Proportional to 6,377.40, 9,569.79 and 2,679.30

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Solution

The fourth proportional to 6,377.40, 9,569.79 and 2,679.30 is: 4,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.40 : 9,569.79 = 2,679.30 : x
  2. Step 2: Convert to fraction form
    6,377.40/9,569.79 = 2,679.30/x
  3. Step 3: Cross multiply
    6,377.40x = 9,569.79 × 2,679.30
  4. Step 4: Simplify right side
    6,377.40x = 25,640,338.35
  5. Step 5: Solve for x
    x = 25,640,338.35/6,377.40
  6. Step 6: Final answer
    x = 4,020.50

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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.