Home / 2,113.12-3,169.44-574.08

Finding the Fourth Proportional to 2,113.12, 3,169.44 and 574.08

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Solution

The fourth proportional to 2,113.12, 3,169.44 and 574.08 is: 861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.12 : 3,169.44 = 574.08 : x
  2. Step 2: Convert to fraction form
    2,113.12/3,169.44 = 574.08/x
  3. Step 3: Cross multiply
    2,113.12x = 3,169.44 × 574.08
  4. Step 4: Simplify right side
    2,113.12x = 1,819,512.12
  5. Step 5: Solve for x
    x = 1,819,512.12/2,113.12
  6. Step 6: Final answer
    x = 861.05

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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.