Home / 3,318.54-4,977.19-1,127.22

Finding the Fourth Proportional to 3,318.54, 4,977.19 and 1,127.22

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Solution

The fourth proportional to 3,318.54, 4,977.19 and 1,127.22 is: 1,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.54 : 4,977.19 = 1,127.22 : x
  2. Step 2: Convert to fraction form
    3,318.54/4,977.19 = 1,127.22/x
  3. Step 3: Cross multiply
    3,318.54x = 4,977.19 × 1,127.22
  4. Step 4: Simplify right side
    3,318.54x = 5,610,388.11
  5. Step 5: Solve for x
    x = 5,610,388.11/3,318.54
  6. Step 6: Final answer
    x = 1,690.62

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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.