Home / 3,345.28-5,017.92-1,398.04

Finding the Fourth Proportional to 3,345.28, 5,017.92 and 1,398.04

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Solution

The fourth proportional to 3,345.28, 5,017.92 and 1,398.04 is: 2,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.28 : 5,017.92 = 1,398.04 : x
  2. Step 2: Convert to fraction form
    3,345.28/5,017.92 = 1,398.04/x
  3. Step 3: Cross multiply
    3,345.28x = 5,017.92 × 1,398.04
  4. Step 4: Simplify right side
    3,345.28x = 7,015,252.88
  5. Step 5: Solve for x
    x = 7,015,252.88/3,345.28
  6. Step 6: Final answer
    x = 2,097.06

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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.