Home / 4,047.18-5,585.38-2,279.22

Finding the Fourth Proportional to 4,047.18, 5,585.38 and 2,279.22

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Solution

The fourth proportional to 4,047.18, 5,585.38 and 2,279.22 is: 3,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.18 : 5,585.38 = 2,279.22 : x
  2. Step 2: Convert to fraction form
    4,047.18/5,585.38 = 2,279.22/x
  3. Step 3: Cross multiply
    4,047.18x = 5,585.38 × 2,279.22
  4. Step 4: Simplify right side
    4,047.18x = 12,730,309.80
  5. Step 5: Solve for x
    x = 12,730,309.80/4,047.18
  6. Step 6: Final answer
    x = 3,145.48

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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.