Home / 2,191.76-3,282.48-1,148.96

Finding the Fourth Proportional to 2,191.76, 3,282.48 and 1,148.96

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Solution

The fourth proportional to 2,191.76, 3,282.48 and 1,148.96 is: 1,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.76 : 3,282.48 = 1,148.96 : x
  2. Step 2: Convert to fraction form
    2,191.76/3,282.48 = 1,148.96/x
  3. Step 3: Cross multiply
    2,191.76x = 3,282.48 × 1,148.96
  4. Step 4: Simplify right side
    2,191.76x = 3,771,438.22
  5. Step 5: Solve for x
    x = 3,771,438.22/2,191.76
  6. Step 6: Final answer
    x = 1,720.74

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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.