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Finding the Fourth Proportional to 2,661.04, 3,971.44 and 2,591.92

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Solution

The fourth proportional to 2,661.04, 3,971.44 and 2,591.92 is: 3,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.04 : 3,971.44 = 2,591.92 : x
  2. Step 2: Convert to fraction form
    2,661.04/3,971.44 = 2,591.92/x
  3. Step 3: Cross multiply
    2,661.04x = 3,971.44 × 2,591.92
  4. Step 4: Simplify right side
    2,661.04x = 10,293,654.76
  5. Step 5: Solve for x
    x = 10,293,654.76/2,661.04
  6. Step 6: Final answer
    x = 3,868.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.