Home / 2,747.20-3,789.12-1,751.68

Finding the Fourth Proportional to 2,747.20, 3,789.12 and 1,751.68

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Solution

The fourth proportional to 2,747.20, 3,789.12 and 1,751.68 is: 2,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.20 : 3,789.12 = 1,751.68 : x
  2. Step 2: Convert to fraction form
    2,747.20/3,789.12 = 1,751.68/x
  3. Step 3: Cross multiply
    2,747.20x = 3,789.12 × 1,751.68
  4. Step 4: Simplify right side
    2,747.20x = 6,637,325.72
  5. Step 5: Solve for x
    x = 6,637,325.72/2,747.20
  6. Step 6: Final answer
    x = 2,416.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.