Home / 2,226.18-3,338.77-745.48

Finding the Fourth Proportional to 2,226.18, 3,338.77 and 745.48

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Solution

The fourth proportional to 2,226.18, 3,338.77 and 745.48 is: 1,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.18 : 3,338.77 = 745.48 : x
  2. Step 2: Convert to fraction form
    2,226.18/3,338.77 = 745.48/x
  3. Step 3: Cross multiply
    2,226.18x = 3,338.77 × 745.48
  4. Step 4: Simplify right side
    2,226.18x = 2,488,980.58
  5. Step 5: Solve for x
    x = 2,488,980.58/2,226.18
  6. Step 6: Final answer
    x = 1,118.05

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1.5x scale

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.