Home / 3,122.51-4,300.97-2,176.61

Finding the Fourth Proportional to 3,122.51, 4,300.97 and 2,176.61

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Solution

The fourth proportional to 3,122.51, 4,300.97 and 2,176.61 is: 2,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.51 : 4,300.97 = 2,176.61 : x
  2. Step 2: Convert to fraction form
    3,122.51/4,300.97 = 2,176.61/x
  3. Step 3: Cross multiply
    3,122.51x = 4,300.97 × 2,176.61
  4. Step 4: Simplify right side
    3,122.51x = 9,361,518.25
  5. Step 5: Solve for x
    x = 9,361,518.25/3,122.51
  6. Step 6: Final answer
    x = 2,998.08

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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.