Home / 1,286.00-1,927.80-700.14

Finding the Fourth Proportional to 1,286.00, 1,927.80 and 700.14

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Solution

The fourth proportional to 1,286.00, 1,927.80 and 700.14 is: 1,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.00 : 1,927.80 = 700.14 : x
  2. Step 2: Convert to fraction form
    1,286.00/1,927.80 = 700.14/x
  3. Step 3: Cross multiply
    1,286.00x = 1,927.80 × 700.14
  4. Step 4: Simplify right side
    1,286.00x = 1,349,737.12
  5. Step 5: Solve for x
    x = 1,349,737.12/1,286.00
  6. Step 6: Final answer
    x = 1,049.56

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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.