Home / 6,915.56-10,367.52-3,215.90

Finding the Fourth Proportional to 6,915.56, 10,367.52 and 3,215.90

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Solution

The fourth proportional to 6,915.56, 10,367.52 and 3,215.90 is: 4,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.56 : 10,367.52 = 3,215.90 : x
  2. Step 2: Convert to fraction form
    6,915.56/10,367.52 = 3,215.90/x
  3. Step 3: Cross multiply
    6,915.56x = 10,367.52 × 3,215.90
  4. Step 4: Simplify right side
    6,915.56x = 33,340,907.57
  5. Step 5: Solve for x
    x = 33,340,907.57/6,915.56
  6. Step 6: Final answer
    x = 4,821.14

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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.