Home / 1,721.64-2,376.42-1,013.44

Finding the Fourth Proportional to 1,721.64, 2,376.42 and 1,013.44

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Solution

The fourth proportional to 1,721.64, 2,376.42 and 1,013.44 is: 1,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.64 : 2,376.42 = 1,013.44 : x
  2. Step 2: Convert to fraction form
    1,721.64/2,376.42 = 1,013.44/x
  3. Step 3: Cross multiply
    1,721.64x = 2,376.42 × 1,013.44
  4. Step 4: Simplify right side
    1,721.64x = 2,408,359.08
  5. Step 5: Solve for x
    x = 2,408,359.08/1,721.64
  6. Step 6: Final answer
    x = 1,398.87

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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.