Home / 4,113.72-6,171.48-1,921.24

Finding the Fourth Proportional to 4,113.72, 6,171.48 and 1,921.24

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Solution

The fourth proportional to 4,113.72, 6,171.48 and 1,921.24 is: 2,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.72 : 6,171.48 = 1,921.24 : x
  2. Step 2: Convert to fraction form
    4,113.72/6,171.48 = 1,921.24/x
  3. Step 3: Cross multiply
    4,113.72x = 6,171.48 × 1,921.24
  4. Step 4: Simplify right side
    4,113.72x = 11,856,894.24
  5. Step 5: Solve for x
    x = 11,856,894.24/4,113.72
  6. Step 6: Final answer
    x = 2,882.28

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1.5x scale

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.