Home / 1,376.28-2,064.23-451.88

Finding the Fourth Proportional to 1,376.28, 2,064.23 and 451.88

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Solution

The fourth proportional to 1,376.28, 2,064.23 and 451.88 is: 677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.28 : 2,064.23 = 451.88 : x
  2. Step 2: Convert to fraction form
    1,376.28/2,064.23 = 451.88/x
  3. Step 3: Cross multiply
    1,376.28x = 2,064.23 × 451.88
  4. Step 4: Simplify right side
    1,376.28x = 932,784.25
  5. Step 5: Solve for x
    x = 932,784.25/1,376.28
  6. Step 6: Final answer
    x = 677.76

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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.