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Finding the Fourth Proportional to 3,304.76, 4,559.76 and 1,979

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Solution

The fourth proportional to 3,304.76, 4,559.76 and 1,979 is: 2,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,304.76 : 4,559.76 = 1,979 : x
  2. Step 2: Convert to fraction form
    3,304.76/4,559.76 = 1,979/x
  3. Step 3: Cross multiply
    3,304.76x = 4,559.76 × 1,979
  4. Step 4: Simplify right side
    3,304.76x = 9,023,765.04
  5. Step 5: Solve for x
    x = 9,023,765.04/3,304.76
  6. Step 6: Final answer
    x = 2,730.54

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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.