Home / 5,179.70-7,760.55-4,672.10

Finding the Fourth Proportional to 5,179.70, 7,760.55 and 4,672.10

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Solution

The fourth proportional to 5,179.70, 7,760.55 and 4,672.10 is: 7,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.70 : 7,760.55 = 4,672.10 : x
  2. Step 2: Convert to fraction form
    5,179.70/7,760.55 = 4,672.10/x
  3. Step 3: Cross multiply
    5,179.70x = 7,760.55 × 4,672.10
  4. Step 4: Simplify right side
    5,179.70x = 36,258,065.66
  5. Step 5: Solve for x
    x = 36,258,065.66/5,179.70
  6. Step 6: Final answer
    x = 7,000.03

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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.