Home / 1,758.12-2,636.40-936.22

Finding the Fourth Proportional to 1,758.12, 2,636.40 and 936.22

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Solution

The fourth proportional to 1,758.12, 2,636.40 and 936.22 is: 1,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.12 : 2,636.40 = 936.22 : x
  2. Step 2: Convert to fraction form
    1,758.12/2,636.40 = 936.22/x
  3. Step 3: Cross multiply
    1,758.12x = 2,636.40 × 936.22
  4. Step 4: Simplify right side
    1,758.12x = 2,468,250.41
  5. Step 5: Solve for x
    x = 2,468,250.41/1,758.12
  6. Step 6: Final answer
    x = 1,403.91

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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.