Home / 2,738.32-3,772.10-2,178.62

Finding the Fourth Proportional to 2,738.32, 3,772.10 and 2,178.62

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Solution

The fourth proportional to 2,738.32, 3,772.10 and 2,178.62 is: 3,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.32 : 3,772.10 = 2,178.62 : x
  2. Step 2: Convert to fraction form
    2,738.32/3,772.10 = 2,178.62/x
  3. Step 3: Cross multiply
    2,738.32x = 3,772.10 × 2,178.62
  4. Step 4: Simplify right side
    2,738.32x = 8,217,972.50
  5. Step 5: Solve for x
    x = 8,217,972.50/2,738.32
  6. Step 6: Final answer
    x = 3,001.10

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1.5x scale

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.