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Finding the Fourth Proportional to 2,071.94, 3,106.93 and 610.80

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Solution

The fourth proportional to 2,071.94, 3,106.93 and 610.80 is: 915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.94 : 3,106.93 = 610.80 : x
  2. Step 2: Convert to fraction form
    2,071.94/3,106.93 = 610.80/x
  3. Step 3: Cross multiply
    2,071.94x = 3,106.93 × 610.80
  4. Step 4: Simplify right side
    2,071.94x = 1,897,694.26
  5. Step 5: Solve for x
    x = 1,897,694.26/2,071.94
  6. Step 6: Final answer
    x = 915.90

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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.