Home / 3,119.01-4,306.32-2,376.78

Finding the Fourth Proportional to 3,119.01, 4,306.32 and 2,376.78

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Solution

The fourth proportional to 3,119.01, 4,306.32 and 2,376.78 is: 3,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.01 : 4,306.32 = 2,376.78 : x
  2. Step 2: Convert to fraction form
    3,119.01/4,306.32 = 2,376.78/x
  3. Step 3: Cross multiply
    3,119.01x = 4,306.32 × 2,376.78
  4. Step 4: Simplify right side
    3,119.01x = 10,235,175.25
  5. Step 5: Solve for x
    x = 10,235,175.25/3,119.01
  6. Step 6: Final answer
    x = 3,281.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.