Home / 4,766.40-7,149.60-3,945.60

Finding the Fourth Proportional to 4,766.40, 7,149.60 and 3,945.60

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Solution

The fourth proportional to 4,766.40, 7,149.60 and 3,945.60 is: 5,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.40 : 7,149.60 = 3,945.60 : x
  2. Step 2: Convert to fraction form
    4,766.40/7,149.60 = 3,945.60/x
  3. Step 3: Cross multiply
    4,766.40x = 7,149.60 × 3,945.60
  4. Step 4: Simplify right side
    4,766.40x = 28,209,461.76
  5. Step 5: Solve for x
    x = 28,209,461.76/4,766.40
  6. Step 6: Final answer
    x = 5,918.40

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Similar ratio
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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.