Home / 3,616.12-4,987.02-3,220.60

Finding the Fourth Proportional to 3,616.12, 4,987.02 and 3,220.60

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Solution

The fourth proportional to 3,616.12, 4,987.02 and 3,220.60 is: 4,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.12 : 4,987.02 = 3,220.60 : x
  2. Step 2: Convert to fraction form
    3,616.12/4,987.02 = 3,220.60/x
  3. Step 3: Cross multiply
    3,616.12x = 4,987.02 × 3,220.60
  4. Step 4: Simplify right side
    3,616.12x = 16,061,196.61
  5. Step 5: Solve for x
    x = 16,061,196.61/3,616.12
  6. Step 6: Final answer
    x = 4,441.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.