Home / 3,012.45-4,518.78-932.26

Finding the Fourth Proportional to 3,012.45, 4,518.78 and 932.26

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Solution

The fourth proportional to 3,012.45, 4,518.78 and 932.26 is: 1,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.45 : 4,518.78 = 932.26 : x
  2. Step 2: Convert to fraction form
    3,012.45/4,518.78 = 932.26/x
  3. Step 3: Cross multiply
    3,012.45x = 4,518.78 × 932.26
  4. Step 4: Simplify right side
    3,012.45x = 4,212,677.84
  5. Step 5: Solve for x
    x = 4,212,677.84/3,012.45
  6. Step 6: Final answer
    x = 1,398.42

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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.