Home / 1,314.30-1,974.14-1,270.56

Finding the Fourth Proportional to 1,314.30, 1,974.14 and 1,270.56

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Solution

The fourth proportional to 1,314.30, 1,974.14 and 1,270.56 is: 1,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.30 : 1,974.14 = 1,270.56 : x
  2. Step 2: Convert to fraction form
    1,314.30/1,974.14 = 1,270.56/x
  3. Step 3: Cross multiply
    1,314.30x = 1,974.14 × 1,270.56
  4. Step 4: Simplify right side
    1,314.30x = 2,508,263.32
  5. Step 5: Solve for x
    x = 2,508,263.32/1,314.30
  6. Step 6: Final answer
    x = 1,908.44

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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.