Home / 1,346.27-1,856.39-927.23

Finding the Fourth Proportional to 1,346.27, 1,856.39 and 927.23

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Solution

The fourth proportional to 1,346.27, 1,856.39 and 927.23 is: 1,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.27 : 1,856.39 = 927.23 : x
  2. Step 2: Convert to fraction form
    1,346.27/1,856.39 = 927.23/x
  3. Step 3: Cross multiply
    1,346.27x = 1,856.39 × 927.23
  4. Step 4: Simplify right side
    1,346.27x = 1,721,286.58
  5. Step 5: Solve for x
    x = 1,721,286.58/1,346.27
  6. Step 6: Final answer
    x = 1,278.56

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Half scale
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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.