Home / 2,988.73-4,122.76-1,793.40

Finding the Fourth Proportional to 2,988.73, 4,122.76 and 1,793.40

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Solution

The fourth proportional to 2,988.73, 4,122.76 and 1,793.40 is: 2,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.73 : 4,122.76 = 1,793.40 : x
  2. Step 2: Convert to fraction form
    2,988.73/4,122.76 = 1,793.40/x
  3. Step 3: Cross multiply
    2,988.73x = 4,122.76 × 1,793.40
  4. Step 4: Simplify right side
    2,988.73x = 7,393,748.82
  5. Step 5: Solve for x
    x = 7,393,748.82/2,988.73
  6. Step 6: Final answer
    x = 2,473.88

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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.