Home / 3,376.20-5,066.86-1,429.76

Finding the Fourth Proportional to 3,376.20, 5,066.86 and 1,429.76

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Solution

The fourth proportional to 3,376.20, 5,066.86 and 1,429.76 is: 2,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.20 : 5,066.86 = 1,429.76 : x
  2. Step 2: Convert to fraction form
    3,376.20/5,066.86 = 1,429.76/x
  3. Step 3: Cross multiply
    3,376.20x = 5,066.86 × 1,429.76
  4. Step 4: Simplify right side
    3,376.20x = 7,244,393.75
  5. Step 5: Solve for x
    x = 7,244,393.75/3,376.20
  6. Step 6: Final answer
    x = 2,145.72

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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.