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Finding the Fourth Proportional to 3,897.79, 5,846.68 and 976.10

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Solution

The fourth proportional to 3,897.79, 5,846.68 and 976.10 is: 1,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.79 : 5,846.68 = 976.10 : x
  2. Step 2: Convert to fraction form
    3,897.79/5,846.68 = 976.10/x
  3. Step 3: Cross multiply
    3,897.79x = 5,846.68 × 976.10
  4. Step 4: Simplify right side
    3,897.79x = 5,706,912.67
  5. Step 5: Solve for x
    x = 5,706,912.67/3,897.79
  6. Step 6: Final answer
    x = 1,464.14

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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.