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Finding the Fourth Proportional to 2,814, 3,881.88 and 2,150.16

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Solution

The fourth proportional to 2,814, 3,881.88 and 2,150.16 is: 2,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814 : 3,881.88 = 2,150.16 : x
  2. Step 2: Convert to fraction form
    2,814/3,881.88 = 2,150.16/x
  3. Step 3: Cross multiply
    2,814x = 3,881.88 × 2,150.16
  4. Step 4: Simplify right side
    2,814x = 8,346,663.10
  5. Step 5: Solve for x
    x = 8,346,663.10/2,814
  6. Step 6: Final answer
    x = 2,966.12

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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.