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Finding the Fourth Proportional to 2,710.74, 3,740.85 and 1,591.69

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Solution

The fourth proportional to 2,710.74, 3,740.85 and 1,591.69 is: 2,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.74 : 3,740.85 = 1,591.69 : x
  2. Step 2: Convert to fraction form
    2,710.74/3,740.85 = 1,591.69/x
  3. Step 3: Cross multiply
    2,710.74x = 3,740.85 × 1,591.69
  4. Step 4: Simplify right side
    2,710.74x = 5,954,289.70
  5. Step 5: Solve for x
    x = 5,954,289.70/2,710.74
  6. Step 6: Final answer
    x = 2,196.55

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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.