Home / 1,774.91-2,449.35-1,028.90

Finding the Fourth Proportional to 1,774.91, 2,449.35 and 1,028.90

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Solution

The fourth proportional to 1,774.91, 2,449.35 and 1,028.90 is: 1,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.91 : 2,449.35 = 1,028.90 : x
  2. Step 2: Convert to fraction form
    1,774.91/2,449.35 = 1,028.90/x
  3. Step 3: Cross multiply
    1,774.91x = 2,449.35 × 1,028.90
  4. Step 4: Simplify right side
    1,774.91x = 2,520,142.34
  5. Step 5: Solve for x
    x = 2,520,142.34/1,774.91
  6. Step 6: Final answer
    x = 1,419.87

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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.