Home / 2,915.73-4,369.48-2,092.20

Finding the Fourth Proportional to 2,915.73, 4,369.48 and 2,092.20

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Solution

The fourth proportional to 2,915.73, 4,369.48 and 2,092.20 is: 3,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.73 : 4,369.48 = 2,092.20 : x
  2. Step 2: Convert to fraction form
    2,915.73/4,369.48 = 2,092.20/x
  3. Step 3: Cross multiply
    2,915.73x = 4,369.48 × 2,092.20
  4. Step 4: Simplify right side
    2,915.73x = 9,141,804.44
  5. Step 5: Solve for x
    x = 9,141,804.44/2,915.73
  6. Step 6: Final answer
    x = 3,135.34

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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.