Home / 5,915.20-8,868-2,216.88

Finding the Fourth Proportional to 5,915.20, 8,868 and 2,216.88

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Solution

The fourth proportional to 5,915.20, 8,868 and 2,216.88 is: 3,323.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.20 : 8,868 = 2,216.88 : x
  2. Step 2: Convert to fraction form
    5,915.20/8,868 = 2,216.88/x
  3. Step 3: Cross multiply
    5,915.20x = 8,868 × 2,216.88
  4. Step 4: Simplify right side
    5,915.20x = 19,659,291.84
  5. Step 5: Solve for x
    x = 19,659,291.84/5,915.20
  6. Step 6: Final answer
    x = 3,323.52

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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.