Home / 4,780.55-7,171.20-1,493.64

Finding the Fourth Proportional to 4,780.55, 7,171.20 and 1,493.64

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Solution

The fourth proportional to 4,780.55, 7,171.20 and 1,493.64 is: 2,240.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.55 : 7,171.20 = 1,493.64 : x
  2. Step 2: Convert to fraction form
    4,780.55/7,171.20 = 1,493.64/x
  3. Step 3: Cross multiply
    4,780.55x = 7,171.20 × 1,493.64
  4. Step 4: Simplify right side
    4,780.55x = 10,711,191.17
  5. Step 5: Solve for x
    x = 10,711,191.17/4,780.55
  6. Step 6: Final answer
    x = 2,240.58

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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.