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Finding the Fourth Proportional to 1,908.79, 2,863.24 and 610.26

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Solution

The fourth proportional to 1,908.79, 2,863.24 and 610.26 is: 915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.79 : 2,863.24 = 610.26 : x
  2. Step 2: Convert to fraction form
    1,908.79/2,863.24 = 610.26/x
  3. Step 3: Cross multiply
    1,908.79x = 2,863.24 × 610.26
  4. Step 4: Simplify right side
    1,908.79x = 1,747,320.84
  5. Step 5: Solve for x
    x = 1,747,320.84/1,908.79
  6. Step 6: Final answer
    x = 915.41

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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.