Home / 3,156.82-4,732.47-1,306.78

Finding the Fourth Proportional to 3,156.82, 4,732.47 and 1,306.78

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Solution

The fourth proportional to 3,156.82, 4,732.47 and 1,306.78 is: 1,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.82 : 4,732.47 = 1,306.78 : x
  2. Step 2: Convert to fraction form
    3,156.82/4,732.47 = 1,306.78/x
  3. Step 3: Cross multiply
    3,156.82x = 4,732.47 × 1,306.78
  4. Step 4: Simplify right side
    3,156.82x = 6,184,297.15
  5. Step 5: Solve for x
    x = 6,184,297.15/3,156.82
  6. Step 6: Final answer
    x = 1,959.03

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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.