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Finding the Fourth Proportional to 2,341.62, 3,513.90 and 880.64

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Solution

The fourth proportional to 2,341.62, 3,513.90 and 880.64 is: 1,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.62 : 3,513.90 = 880.64 : x
  2. Step 2: Convert to fraction form
    2,341.62/3,513.90 = 880.64/x
  3. Step 3: Cross multiply
    2,341.62x = 3,513.90 × 880.64
  4. Step 4: Simplify right side
    2,341.62x = 3,094,480.90
  5. Step 5: Solve for x
    x = 3,094,480.90/2,341.62
  6. Step 6: Final answer
    x = 1,321.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.