Home / 1,974.17-2,954.40-1,427.42

Finding the Fourth Proportional to 1,974.17, 2,954.40 and 1,427.42

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Solution

The fourth proportional to 1,974.17, 2,954.40 and 1,427.42 is: 2,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.17 : 2,954.40 = 1,427.42 : x
  2. Step 2: Convert to fraction form
    1,974.17/2,954.40 = 1,427.42/x
  3. Step 3: Cross multiply
    1,974.17x = 2,954.40 × 1,427.42
  4. Step 4: Simplify right side
    1,974.17x = 4,217,154.88
  5. Step 5: Solve for x
    x = 4,217,154.88/1,974.17
  6. Step 6: Final answer
    x = 2,136.17

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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.