Home / 1,954.78-2,928.92-1,376.44

Finding the Fourth Proportional to 1,954.78, 2,928.92 and 1,376.44

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Solution

The fourth proportional to 1,954.78, 2,928.92 and 1,376.44 is: 2,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.78 : 2,928.92 = 1,376.44 : x
  2. Step 2: Convert to fraction form
    1,954.78/2,928.92 = 1,376.44/x
  3. Step 3: Cross multiply
    1,954.78x = 2,928.92 × 1,376.44
  4. Step 4: Simplify right side
    1,954.78x = 4,031,482.64
  5. Step 5: Solve for x
    x = 4,031,482.64/1,954.78
  6. Step 6: Final answer
    x = 2,062.37

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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.