Home / 2,228.16-3,342.12-767.16

Finding the Fourth Proportional to 2,228.16, 3,342.12 and 767.16

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Solution

The fourth proportional to 2,228.16, 3,342.12 and 767.16 is: 1,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.16 : 3,342.12 = 767.16 : x
  2. Step 2: Convert to fraction form
    2,228.16/3,342.12 = 767.16/x
  3. Step 3: Cross multiply
    2,228.16x = 3,342.12 × 767.16
  4. Step 4: Simplify right side
    2,228.16x = 2,563,940.78
  5. Step 5: Solve for x
    x = 2,563,940.78/2,228.16
  6. Step 6: Final answer
    x = 1,150.70

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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.