Home / 1,322.19-1,979.37-1,235.61

Finding the Fourth Proportional to 1,322.19, 1,979.37 and 1,235.61

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Solution

The fourth proportional to 1,322.19, 1,979.37 and 1,235.61 is: 1,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.19 : 1,979.37 = 1,235.61 : x
  2. Step 2: Convert to fraction form
    1,322.19/1,979.37 = 1,235.61/x
  3. Step 3: Cross multiply
    1,322.19x = 1,979.37 × 1,235.61
  4. Step 4: Simplify right side
    1,322.19x = 2,445,729.37
  5. Step 5: Solve for x
    x = 2,445,729.37/1,322.19
  6. Step 6: Final answer
    x = 1,849.76

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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.