Home / 1,915.73-2,644.08-1,119.15

Finding the Fourth Proportional to 1,915.73, 2,644.08 and 1,119.15

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Solution

The fourth proportional to 1,915.73, 2,644.08 and 1,119.15 is: 1,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.73 : 2,644.08 = 1,119.15 : x
  2. Step 2: Convert to fraction form
    1,915.73/2,644.08 = 1,119.15/x
  3. Step 3: Cross multiply
    1,915.73x = 2,644.08 × 1,119.15
  4. Step 4: Simplify right side
    1,915.73x = 2,959,122.13
  5. Step 5: Solve for x
    x = 2,959,122.13/1,915.73
  6. Step 6: Final answer
    x = 1,544.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.