Home / 2,211.39-3,052.49-1,425.69

Finding the Fourth Proportional to 2,211.39, 3,052.49 and 1,425.69

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Solution

The fourth proportional to 2,211.39, 3,052.49 and 1,425.69 is: 1,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.39 : 3,052.49 = 1,425.69 : x
  2. Step 2: Convert to fraction form
    2,211.39/3,052.49 = 1,425.69/x
  3. Step 3: Cross multiply
    2,211.39x = 3,052.49 × 1,425.69
  4. Step 4: Simplify right side
    2,211.39x = 4,351,897.34
  5. Step 5: Solve for x
    x = 4,351,897.34/2,211.39
  6. Step 6: Final answer
    x = 1,967.95

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Half scale
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Double scale
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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.