Home / 2,969.91-4,445.19-2,189.61

Finding the Fourth Proportional to 2,969.91, 4,445.19 and 2,189.61

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Solution

The fourth proportional to 2,969.91, 4,445.19 and 2,189.61 is: 3,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.91 : 4,445.19 = 2,189.61 : x
  2. Step 2: Convert to fraction form
    2,969.91/4,445.19 = 2,189.61/x
  3. Step 3: Cross multiply
    2,969.91x = 4,445.19 × 2,189.61
  4. Step 4: Simplify right side
    2,969.91x = 9,733,232.48
  5. Step 5: Solve for x
    x = 9,733,232.48/2,969.91
  6. Step 6: Final answer
    x = 3,277.28

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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.