Home / 4,113.29-6,171.98-1,921.56

Finding the Fourth Proportional to 4,113.29, 6,171.98 and 1,921.56

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Solution

The fourth proportional to 4,113.29, 6,171.98 and 1,921.56 is: 2,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.29 : 6,171.98 = 1,921.56 : x
  2. Step 2: Convert to fraction form
    4,113.29/6,171.98 = 1,921.56/x
  3. Step 3: Cross multiply
    4,113.29x = 6,171.98 × 1,921.56
  4. Step 4: Simplify right side
    4,113.29x = 11,859,820.28
  5. Step 5: Solve for x
    x = 11,859,820.28/4,113.29
  6. Step 6: Final answer
    x = 2,883.30

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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.