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Finding the Fourth Proportional to 2,356.60, 3,252.48 and 2,279.86

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Solution

The fourth proportional to 2,356.60, 3,252.48 and 2,279.86 is: 3,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.60 : 3,252.48 = 2,279.86 : x
  2. Step 2: Convert to fraction form
    2,356.60/3,252.48 = 2,279.86/x
  3. Step 3: Cross multiply
    2,356.60x = 3,252.48 × 2,279.86
  4. Step 4: Simplify right side
    2,356.60x = 7,415,199.05
  5. Step 5: Solve for x
    x = 7,415,199.05/2,356.60
  6. Step 6: Final answer
    x = 3,146.57

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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.