Home / 3,220.60-4,829.10-1,487.08

Finding the Fourth Proportional to 3,220.60, 4,829.10 and 1,487.08

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Solution

The fourth proportional to 3,220.60, 4,829.10 and 1,487.08 is: 2,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.60 : 4,829.10 = 1,487.08 : x
  2. Step 2: Convert to fraction form
    3,220.60/4,829.10 = 1,487.08/x
  3. Step 3: Cross multiply
    3,220.60x = 4,829.10 × 1,487.08
  4. Step 4: Simplify right side
    3,220.60x = 7,181,258.03
  5. Step 5: Solve for x
    x = 7,181,258.03/3,220.60
  6. Step 6: Final answer
    x = 2,229.79

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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.