Home / 2,740.20-4,101.66-1,957.68

Finding the Fourth Proportional to 2,740.20, 4,101.66 and 1,957.68

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Solution

The fourth proportional to 2,740.20, 4,101.66 and 1,957.68 is: 2,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.20 : 4,101.66 = 1,957.68 : x
  2. Step 2: Convert to fraction form
    2,740.20/4,101.66 = 1,957.68/x
  3. Step 3: Cross multiply
    2,740.20x = 4,101.66 × 1,957.68
  4. Step 4: Simplify right side
    2,740.20x = 8,029,737.75
  5. Step 5: Solve for x
    x = 8,029,737.75/2,740.20
  6. Step 6: Final answer
    x = 2,930.35

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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.