Home / 4,750.20-7,125.30-3,340.80

Finding the Fourth Proportional to 4,750.20, 7,125.30 and 3,340.80

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Solution

The fourth proportional to 4,750.20, 7,125.30 and 3,340.80 is: 5,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.20 : 7,125.30 = 3,340.80 : x
  2. Step 2: Convert to fraction form
    4,750.20/7,125.30 = 3,340.80/x
  3. Step 3: Cross multiply
    4,750.20x = 7,125.30 × 3,340.80
  4. Step 4: Simplify right side
    4,750.20x = 23,804,202.24
  5. Step 5: Solve for x
    x = 23,804,202.24/4,750.20
  6. Step 6: Final answer
    x = 5,011.20

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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.