Home / 2,073.20-2,861.17-1,189.28

Finding the Fourth Proportional to 2,073.20, 2,861.17 and 1,189.28

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Solution

The fourth proportional to 2,073.20, 2,861.17 and 1,189.28 is: 1,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.20 : 2,861.17 = 1,189.28 : x
  2. Step 2: Convert to fraction form
    2,073.20/2,861.17 = 1,189.28/x
  3. Step 3: Cross multiply
    2,073.20x = 2,861.17 × 1,189.28
  4. Step 4: Simplify right side
    2,073.20x = 3,402,743.13
  5. Step 5: Solve for x
    x = 3,402,743.13/2,073.20
  6. Step 6: Final answer
    x = 1,641.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.