Home / 3,153.98-4,728.36-1,306.42

Finding the Fourth Proportional to 3,153.98, 4,728.36 and 1,306.42

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Solution

The fourth proportional to 3,153.98, 4,728.36 and 1,306.42 is: 1,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.98 : 4,728.36 = 1,306.42 : x
  2. Step 2: Convert to fraction form
    3,153.98/4,728.36 = 1,306.42/x
  3. Step 3: Cross multiply
    3,153.98x = 4,728.36 × 1,306.42
  4. Step 4: Simplify right side
    3,153.98x = 6,177,224.07
  5. Step 5: Solve for x
    x = 6,177,224.07/3,153.98
  6. Step 6: Final answer
    x = 1,958.55

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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.