Home / 3,220.30-4,830.45-2,575.12

Finding the Fourth Proportional to 3,220.30, 4,830.45 and 2,575.12

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Solution

The fourth proportional to 3,220.30, 4,830.45 and 2,575.12 is: 3,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.30 : 4,830.45 = 2,575.12 : x
  2. Step 2: Convert to fraction form
    3,220.30/4,830.45 = 2,575.12/x
  3. Step 3: Cross multiply
    3,220.30x = 4,830.45 × 2,575.12
  4. Step 4: Simplify right side
    3,220.30x = 12,438,988.40
  5. Step 5: Solve for x
    x = 12,438,988.40/3,220.30
  6. Step 6: Final answer
    x = 3,862.68

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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.