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Finding the Fourth Proportional to 6,752.68, 10,127.80 and 1,821.18

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Solution

The fourth proportional to 6,752.68, 10,127.80 and 1,821.18 is: 2,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752.68 : 10,127.80 = 1,821.18 : x
  2. Step 2: Convert to fraction form
    6,752.68/10,127.80 = 1,821.18/x
  3. Step 3: Cross multiply
    6,752.68x = 10,127.80 × 1,821.18
  4. Step 4: Simplify right side
    6,752.68x = 18,444,546.80
  5. Step 5: Solve for x
    x = 18,444,546.80/6,752.68
  6. Step 6: Final answer
    x = 2,731.44

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1.5x scale

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.