Home / 2,221.37-3,065.86-2,122.95

Finding the Fourth Proportional to 2,221.37, 3,065.86 and 2,122.95

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Solution

The fourth proportional to 2,221.37, 3,065.86 and 2,122.95 is: 2,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.37 : 3,065.86 = 2,122.95 : x
  2. Step 2: Convert to fraction form
    2,221.37/3,065.86 = 2,122.95/x
  3. Step 3: Cross multiply
    2,221.37x = 3,065.86 × 2,122.95
  4. Step 4: Simplify right side
    2,221.37x = 6,508,667.49
  5. Step 5: Solve for x
    x = 6,508,667.49/2,221.37
  6. Step 6: Final answer
    x = 2,930.02

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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.