Home / 2,320.90-3,481.34-1,089.16

Finding the Fourth Proportional to 2,320.90, 3,481.34 and 1,089.16

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Solution

The fourth proportional to 2,320.90, 3,481.34 and 1,089.16 is: 1,633.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.90 : 3,481.34 = 1,089.16 : x
  2. Step 2: Convert to fraction form
    2,320.90/3,481.34 = 1,089.16/x
  3. Step 3: Cross multiply
    2,320.90x = 3,481.34 × 1,089.16
  4. Step 4: Simplify right side
    2,320.90x = 3,791,736.27
  5. Step 5: Solve for x
    x = 3,791,736.27/2,320.90
  6. Step 6: Final answer
    x = 1,633.74

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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.