Home / 3,187.57-4,780.19-1,107.01

Finding the Fourth Proportional to 3,187.57, 4,780.19 and 1,107.01

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Solution

The fourth proportional to 3,187.57, 4,780.19 and 1,107.01 is: 1,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.57 : 4,780.19 = 1,107.01 : x
  2. Step 2: Convert to fraction form
    3,187.57/4,780.19 = 1,107.01/x
  3. Step 3: Cross multiply
    3,187.57x = 4,780.19 × 1,107.01
  4. Step 4: Simplify right side
    3,187.57x = 5,291,712.60
  5. Step 5: Solve for x
    x = 5,291,712.60/3,187.57
  6. Step 6: Final answer
    x = 1,660.11

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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.