Home / 2,217.04-3,321.86-1,486.80

Finding the Fourth Proportional to 2,217.04, 3,321.86 and 1,486.80

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Solution

The fourth proportional to 2,217.04, 3,321.86 and 1,486.80 is: 2,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.04 : 3,321.86 = 1,486.80 : x
  2. Step 2: Convert to fraction form
    2,217.04/3,321.86 = 1,486.80/x
  3. Step 3: Cross multiply
    2,217.04x = 3,321.86 × 1,486.80
  4. Step 4: Simplify right side
    2,217.04x = 4,938,941.45
  5. Step 5: Solve for x
    x = 4,938,941.45/2,217.04
  6. Step 6: Final answer
    x = 2,227.72

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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.