Home / 3,187.72-4,783.19-2,256.65

Finding the Fourth Proportional to 3,187.72, 4,783.19 and 2,256.65

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Solution

The fourth proportional to 3,187.72, 4,783.19 and 2,256.65 is: 3,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.72 : 4,783.19 = 2,256.65 : x
  2. Step 2: Convert to fraction form
    3,187.72/4,783.19 = 2,256.65/x
  3. Step 3: Cross multiply
    3,187.72x = 4,783.19 × 2,256.65
  4. Step 4: Simplify right side
    3,187.72x = 10,793,971.25
  5. Step 5: Solve for x
    x = 10,793,971.25/3,187.72
  6. Step 6: Final answer
    x = 3,386.11

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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.