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Finding the Fourth Proportional to 7,897.66, 11,846.12 and 1,974.59

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Solution

The fourth proportional to 7,897.66, 11,846.12 and 1,974.59 is: 2,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.66 : 11,846.12 = 1,974.59 : x
  2. Step 2: Convert to fraction form
    7,897.66/11,846.12 = 1,974.59/x
  3. Step 3: Cross multiply
    7,897.66x = 11,846.12 × 1,974.59
  4. Step 4: Simplify right side
    7,897.66x = 23,391,216.52
  5. Step 5: Solve for x
    x = 23,391,216.52/7,897.66
  6. Step 6: Final answer
    x = 2,961.79

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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.