Home / 2,228.37-3,342.45-767.49

Finding the Fourth Proportional to 2,228.37, 3,342.45 and 767.49

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Solution

The fourth proportional to 2,228.37, 3,342.45 and 767.49 is: 1,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.37 : 3,342.45 = 767.49 : x
  2. Step 2: Convert to fraction form
    2,228.37/3,342.45 = 767.49/x
  3. Step 3: Cross multiply
    2,228.37x = 3,342.45 × 767.49
  4. Step 4: Simplify right side
    2,228.37x = 2,565,296.95
  5. Step 5: Solve for x
    x = 2,565,296.95/2,228.37
  6. Step 6: Final answer
    x = 1,151.20

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Double scale
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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.