Home / 5,111.26-7,660.47-2,186.12

Finding the Fourth Proportional to 5,111.26, 7,660.47 and 2,186.12

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Solution

The fourth proportional to 5,111.26, 7,660.47 and 2,186.12 is: 3,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.26 : 7,660.47 = 2,186.12 : x
  2. Step 2: Convert to fraction form
    5,111.26/7,660.47 = 2,186.12/x
  3. Step 3: Cross multiply
    5,111.26x = 7,660.47 × 2,186.12
  4. Step 4: Simplify right side
    5,111.26x = 16,746,734.03
  5. Step 5: Solve for x
    x = 16,746,734.03/5,111.26
  6. Step 6: Final answer
    x = 3,276.44

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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.