Home / 1,369.23-1,887.28-926.97

Finding the Fourth Proportional to 1,369.23, 1,887.28 and 926.97

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Solution

The fourth proportional to 1,369.23, 1,887.28 and 926.97 is: 1,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.23 : 1,887.28 = 926.97 : x
  2. Step 2: Convert to fraction form
    1,369.23/1,887.28 = 926.97/x
  3. Step 3: Cross multiply
    1,369.23x = 1,887.28 × 926.97
  4. Step 4: Simplify right side
    1,369.23x = 1,749,451.94
  5. Step 5: Solve for x
    x = 1,749,451.94/1,369.23
  6. Step 6: Final answer
    x = 1,277.69

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1.5x scale

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.