Home / 4,811.90-7,221.50-3,248.20

Finding the Fourth Proportional to 4,811.90, 7,221.50 and 3,248.20

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Solution

The fourth proportional to 4,811.90, 7,221.50 and 3,248.20 is: 4,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.90 : 7,221.50 = 3,248.20 : x
  2. Step 2: Convert to fraction form
    4,811.90/7,221.50 = 3,248.20/x
  3. Step 3: Cross multiply
    4,811.90x = 7,221.50 × 3,248.20
  4. Step 4: Simplify right side
    4,811.90x = 23,456,823.95
  5. Step 5: Solve for x
    x = 23,456,823.95/4,811.90
  6. Step 6: Final answer
    x = 4,874.75

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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.