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Finding the Fourth Proportional to 4,047.54, 5,585.71 and 2,279.21

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Solution

The fourth proportional to 4,047.54, 5,585.71 and 2,279.21 is: 3,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.54 : 5,585.71 = 2,279.21 : x
  2. Step 2: Convert to fraction form
    4,047.54/5,585.71 = 2,279.21/x
  3. Step 3: Cross multiply
    4,047.54x = 5,585.71 × 2,279.21
  4. Step 4: Simplify right side
    4,047.54x = 12,730,976.74
  5. Step 5: Solve for x
    x = 12,730,976.74/4,047.54
  6. Step 6: Final answer
    x = 3,145.36

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