Home / 3,047.91-4,200.09-2,162.18

Finding the Fourth Proportional to 3,047.91, 4,200.09 and 2,162.18

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Solution

The fourth proportional to 3,047.91, 4,200.09 and 2,162.18 is: 2,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.91 : 4,200.09 = 2,162.18 : x
  2. Step 2: Convert to fraction form
    3,047.91/4,200.09 = 2,162.18/x
  3. Step 3: Cross multiply
    3,047.91x = 4,200.09 × 2,162.18
  4. Step 4: Simplify right side
    3,047.91x = 9,081,329.60
  5. Step 5: Solve for x
    x = 9,081,329.60/3,047.91
  6. Step 6: Final answer
    x = 2,979.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.