Home / 2,221.67-3,332.50-2,086.35

Finding the Fourth Proportional to 2,221.67, 3,332.50 and 2,086.35

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Solution

The fourth proportional to 2,221.67, 3,332.50 and 2,086.35 is: 3,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.67 : 3,332.50 = 2,086.35 : x
  2. Step 2: Convert to fraction form
    2,221.67/3,332.50 = 2,086.35/x
  3. Step 3: Cross multiply
    2,221.67x = 3,332.50 × 2,086.35
  4. Step 4: Simplify right side
    2,221.67x = 6,952,744.71
  5. Step 5: Solve for x
    x = 6,952,744.71/2,221.67
  6. Step 6: Final answer
    x = 3,129.51

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Half scale
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Double scale
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Similar ratio
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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.