Home / 3,217.74-4,828.11-1,139.32

Finding the Fourth Proportional to 3,217.74, 4,828.11 and 1,139.32

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Solution

The fourth proportional to 3,217.74, 4,828.11 and 1,139.32 is: 1,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.74 : 4,828.11 = 1,139.32 : x
  2. Step 2: Convert to fraction form
    3,217.74/4,828.11 = 1,139.32/x
  3. Step 3: Cross multiply
    3,217.74x = 4,828.11 × 1,139.32
  4. Step 4: Simplify right side
    3,217.74x = 5,500,732.45
  5. Step 5: Solve for x
    x = 5,500,732.45/3,217.74
  6. Step 6: Final answer
    x = 1,709.50

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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.