Home / 4,988.88-7,480.20-2,215.44

Finding the Fourth Proportional to 4,988.88, 7,480.20 and 2,215.44

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Solution

The fourth proportional to 4,988.88, 7,480.20 and 2,215.44 is: 3,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.88 : 7,480.20 = 2,215.44 : x
  2. Step 2: Convert to fraction form
    4,988.88/7,480.20 = 2,215.44/x
  3. Step 3: Cross multiply
    4,988.88x = 7,480.20 × 2,215.44
  4. Step 4: Simplify right side
    4,988.88x = 16,571,934.29
  5. Step 5: Solve for x
    x = 16,571,934.29/4,988.88
  6. Step 6: Final answer
    x = 3,321.77

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1.5x scale

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.