Home / 4,750.12-7,128.24-2,560.37

Finding the Fourth Proportional to 4,750.12, 7,128.24 and 2,560.37

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Solution

The fourth proportional to 4,750.12, 7,128.24 and 2,560.37 is: 3,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.12 : 7,128.24 = 2,560.37 : x
  2. Step 2: Convert to fraction form
    4,750.12/7,128.24 = 2,560.37/x
  3. Step 3: Cross multiply
    4,750.12x = 7,128.24 × 2,560.37
  4. Step 4: Simplify right side
    4,750.12x = 18,250,919.05
  5. Step 5: Solve for x
    x = 18,250,919.05/4,750.12
  6. Step 6: Final answer
    x = 3,842.21

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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.