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Finding the Fourth Proportional to 3,345.80, 5,019 and 880.58

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Solution

The fourth proportional to 3,345.80, 5,019 and 880.58 is: 1,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.80 : 5,019 = 880.58 : x
  2. Step 2: Convert to fraction form
    3,345.80/5,019 = 880.58/x
  3. Step 3: Cross multiply
    3,345.80x = 5,019 × 880.58
  4. Step 4: Simplify right side
    3,345.80x = 4,419,631.02
  5. Step 5: Solve for x
    x = 4,419,631.02/3,345.80
  6. Step 6: Final answer
    x = 1,320.95

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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.