Home / 5,306.19-7,959.29-2,185.40

Finding the Fourth Proportional to 5,306.19, 7,959.29 and 2,185.40

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Solution

The fourth proportional to 5,306.19, 7,959.29 and 2,185.40 is: 3,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.19 : 7,959.29 = 2,185.40 : x
  2. Step 2: Convert to fraction form
    5,306.19/7,959.29 = 2,185.40/x
  3. Step 3: Cross multiply
    5,306.19x = 7,959.29 × 2,185.40
  4. Step 4: Simplify right side
    5,306.19x = 17,394,181.64
  5. Step 5: Solve for x
    x = 17,394,181.64/5,306.19
  6. Step 6: Final answer
    x = 3,278.09

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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.