Home / 2,789.75-4,191.15-2,632.13

Finding the Fourth Proportional to 2,789.75, 4,191.15 and 2,632.13

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Solution

The fourth proportional to 2,789.75, 4,191.15 and 2,632.13 is: 3,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.75 : 4,191.15 = 2,632.13 : x
  2. Step 2: Convert to fraction form
    2,789.75/4,191.15 = 2,632.13/x
  3. Step 3: Cross multiply
    2,789.75x = 4,191.15 × 2,632.13
  4. Step 4: Simplify right side
    2,789.75x = 11,031,656.28
  5. Step 5: Solve for x
    x = 11,031,656.28/2,789.75
  6. Step 6: Final answer
    x = 3,954.35

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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.