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Finding the Fourth Proportional to 3,306.90, 4,958.55 and 1,356.90

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Solution

The fourth proportional to 3,306.90, 4,958.55 and 1,356.90 is: 2,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.90 : 4,958.55 = 1,356.90 : x
  2. Step 2: Convert to fraction form
    3,306.90/4,958.55 = 1,356.90/x
  3. Step 3: Cross multiply
    3,306.90x = 4,958.55 × 1,356.90
  4. Step 4: Simplify right side
    3,306.90x = 6,728,256.50
  5. Step 5: Solve for x
    x = 6,728,256.50/3,306.90
  6. Step 6: Final answer
    x = 2,034.61

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1.5x scale

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.