Home / 4,749.12-7,125.12-2,797.20

Finding the Fourth Proportional to 4,749.12, 7,125.12 and 2,797.20

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Solution

The fourth proportional to 4,749.12, 7,125.12 and 2,797.20 is: 4,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.12 : 7,125.12 = 2,797.20 : x
  2. Step 2: Convert to fraction form
    4,749.12/7,125.12 = 2,797.20/x
  3. Step 3: Cross multiply
    4,749.12x = 7,125.12 × 2,797.20
  4. Step 4: Simplify right side
    4,749.12x = 19,930,385.66
  5. Step 5: Solve for x
    x = 19,930,385.66/4,749.12
  6. Step 6: Final answer
    x = 4,196.65

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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.