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Finding the Fourth Proportional to 5,248.16, 7,871.52 and 1,960.88

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Solution

The fourth proportional to 5,248.16, 7,871.52 and 1,960.88 is: 2,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.16 : 7,871.52 = 1,960.88 : x
  2. Step 2: Convert to fraction form
    5,248.16/7,871.52 = 1,960.88/x
  3. Step 3: Cross multiply
    5,248.16x = 7,871.52 × 1,960.88
  4. Step 4: Simplify right side
    5,248.16x = 15,435,106.14
  5. Step 5: Solve for x
    x = 15,435,106.14/5,248.16
  6. Step 6: Final answer
    x = 2,941.05

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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.