Home / 4,155.33-6,231.43-1,381.48

Finding the Fourth Proportional to 4,155.33, 6,231.43 and 1,381.48

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Solution

The fourth proportional to 4,155.33, 6,231.43 and 1,381.48 is: 2,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.33 : 6,231.43 = 1,381.48 : x
  2. Step 2: Convert to fraction form
    4,155.33/6,231.43 = 1,381.48/x
  3. Step 3: Cross multiply
    4,155.33x = 6,231.43 × 1,381.48
  4. Step 4: Simplify right side
    4,155.33x = 8,608,595.92
  5. Step 5: Solve for x
    x = 8,608,595.92/4,155.33
  6. Step 6: Final answer
    x = 2,071.70

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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.