Home / 4,047.56-5,585.40-2,279.22

Finding the Fourth Proportional to 4,047.56, 5,585.40 and 2,279.22

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Solution

The fourth proportional to 4,047.56, 5,585.40 and 2,279.22 is: 3,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.56 : 5,585.40 = 2,279.22 : x
  2. Step 2: Convert to fraction form
    4,047.56/5,585.40 = 2,279.22/x
  3. Step 3: Cross multiply
    4,047.56x = 5,585.40 × 2,279.22
  4. Step 4: Simplify right side
    4,047.56x = 12,730,355.39
  5. Step 5: Solve for x
    x = 12,730,355.39/4,047.56
  6. Step 6: Final answer
    x = 3,145.20

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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.