Home / 2,066.16-3,099.38-767.64

Finding the Fourth Proportional to 2,066.16, 3,099.38 and 767.64

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Solution

The fourth proportional to 2,066.16, 3,099.38 and 767.64 is: 1,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066.16 : 3,099.38 = 767.64 : x
  2. Step 2: Convert to fraction form
    2,066.16/3,099.38 = 767.64/x
  3. Step 3: Cross multiply
    2,066.16x = 3,099.38 × 767.64
  4. Step 4: Simplify right side
    2,066.16x = 2,379,204.23
  5. Step 5: Solve for x
    x = 2,379,204.23/2,066.16
  6. Step 6: Final answer
    x = 1,151.51

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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.