Home / 7,149.83-10,727.49-2,221.19

Finding the Fourth Proportional to 7,149.83, 10,727.49 and 2,221.19

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Solution

The fourth proportional to 7,149.83, 10,727.49 and 2,221.19 is: 3,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.83 : 10,727.49 = 2,221.19 : x
  2. Step 2: Convert to fraction form
    7,149.83/10,727.49 = 2,221.19/x
  3. Step 3: Cross multiply
    7,149.83x = 10,727.49 × 2,221.19
  4. Step 4: Simplify right side
    7,149.83x = 23,827,793.51
  5. Step 5: Solve for x
    x = 23,827,793.51/7,149.83
  6. Step 6: Final answer
    x = 3,332.64

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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.