Home / 3,317.98-4,977.30-1,126.88

Finding the Fourth Proportional to 3,317.98, 4,977.30 and 1,126.88

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Solution

The fourth proportional to 3,317.98, 4,977.30 and 1,126.88 is: 1,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.98 : 4,977.30 = 1,126.88 : x
  2. Step 2: Convert to fraction form
    3,317.98/4,977.30 = 1,126.88/x
  3. Step 3: Cross multiply
    3,317.98x = 4,977.30 × 1,126.88
  4. Step 4: Simplify right side
    3,317.98x = 5,608,819.82
  5. Step 5: Solve for x
    x = 5,608,819.82/3,317.98
  6. Step 6: Final answer
    x = 1,690.43

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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.