Home / 4,091.70-6,139.36-2,143.44

Finding the Fourth Proportional to 4,091.70, 6,139.36 and 2,143.44

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Solution

The fourth proportional to 4,091.70, 6,139.36 and 2,143.44 is: 3,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.70 : 6,139.36 = 2,143.44 : x
  2. Step 2: Convert to fraction form
    4,091.70/6,139.36 = 2,143.44/x
  3. Step 3: Cross multiply
    4,091.70x = 6,139.36 × 2,143.44
  4. Step 4: Simplify right side
    4,091.70x = 13,159,349.80
  5. Step 5: Solve for x
    x = 13,159,349.80/4,091.70
  6. Step 6: Final answer
    x = 3,216.11

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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.