Home / 1,915.44-2,853.91-1,789.71

Finding the Fourth Proportional to 1,915.44, 2,853.91 and 1,789.71

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Solution

The fourth proportional to 1,915.44, 2,853.91 and 1,789.71 is: 2,666.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.44 : 2,853.91 = 1,789.71 : x
  2. Step 2: Convert to fraction form
    1,915.44/2,853.91 = 1,789.71/x
  3. Step 3: Cross multiply
    1,915.44x = 2,853.91 × 1,789.71
  4. Step 4: Simplify right side
    1,915.44x = 5,107,671.27
  5. Step 5: Solve for x
    x = 5,107,671.27/1,915.44
  6. Step 6: Final answer
    x = 2,666.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.