Home / 2,191.28-3,282.68-1,726.60

Finding the Fourth Proportional to 2,191.28, 3,282.68 and 1,726.60

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Solution

The fourth proportional to 2,191.28, 3,282.68 and 1,726.60 is: 2,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.28 : 3,282.68 = 1,726.60 : x
  2. Step 2: Convert to fraction form
    2,191.28/3,282.68 = 1,726.60/x
  3. Step 3: Cross multiply
    2,191.28x = 3,282.68 × 1,726.60
  4. Step 4: Simplify right side
    2,191.28x = 5,667,875.29
  5. Step 5: Solve for x
    x = 5,667,875.29/2,191.28
  6. Step 6: Final answer
    x = 2,586.56

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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.