Home / 3,086.12-4,626.16-1,972.12

Finding the Fourth Proportional to 3,086.12, 4,626.16 and 1,972.12

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Solution

The fourth proportional to 3,086.12, 4,626.16 and 1,972.12 is: 2,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.12 : 4,626.16 = 1,972.12 : x
  2. Step 2: Convert to fraction form
    3,086.12/4,626.16 = 1,972.12/x
  3. Step 3: Cross multiply
    3,086.12x = 4,626.16 × 1,972.12
  4. Step 4: Simplify right side
    3,086.12x = 9,123,342.66
  5. Step 5: Solve for x
    x = 9,123,342.66/3,086.12
  6. Step 6: Final answer
    x = 2,956.25

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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.