Home / 4,221.71-6,332.57-1,881.11

Finding the Fourth Proportional to 4,221.71, 6,332.57 and 1,881.11

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Solution

The fourth proportional to 4,221.71, 6,332.57 and 1,881.11 is: 2,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.71 : 6,332.57 = 1,881.11 : x
  2. Step 2: Convert to fraction form
    4,221.71/6,332.57 = 1,881.11/x
  3. Step 3: Cross multiply
    4,221.71x = 6,332.57 × 1,881.11
  4. Step 4: Simplify right side
    4,221.71x = 11,912,251.35
  5. Step 5: Solve for x
    x = 11,912,251.35/4,221.71
  6. Step 6: Final answer
    x = 2,821.67

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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.