Home / 3,314.36-4,965.28-3,121.32

Finding the Fourth Proportional to 3,314.36, 4,965.28 and 3,121.32

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Solution

The fourth proportional to 3,314.36, 4,965.28 and 3,121.32 is: 4,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.36 : 4,965.28 = 3,121.32 : x
  2. Step 2: Convert to fraction form
    3,314.36/4,965.28 = 3,121.32/x
  3. Step 3: Cross multiply
    3,314.36x = 4,965.28 × 3,121.32
  4. Step 4: Simplify right side
    3,314.36x = 15,498,227.77
  5. Step 5: Solve for x
    x = 15,498,227.77/3,314.36
  6. Step 6: Final answer
    x = 4,676.08

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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.