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Finding the Fourth Proportional to 2,908.67, 4,359.87 and 1,922.18

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Solution

The fourth proportional to 2,908.67, 4,359.87 and 1,922.18 is: 2,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.67 : 4,359.87 = 1,922.18 : x
  2. Step 2: Convert to fraction form
    2,908.67/4,359.87 = 1,922.18/x
  3. Step 3: Cross multiply
    2,908.67x = 4,359.87 × 1,922.18
  4. Step 4: Simplify right side
    2,908.67x = 8,380,433.12
  5. Step 5: Solve for x
    x = 8,380,433.12/2,908.67
  6. Step 6: Final answer
    x = 2,881.20

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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.