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Finding the Fourth Proportional to 1,922.02, 2,883.22 and 767.50

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Solution

The fourth proportional to 1,922.02, 2,883.22 and 767.50 is: 1,151.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.02 : 2,883.22 = 767.50 : x
  2. Step 2: Convert to fraction form
    1,922.02/2,883.22 = 767.50/x
  3. Step 3: Cross multiply
    1,922.02x = 2,883.22 × 767.50
  4. Step 4: Simplify right side
    1,922.02x = 2,212,871.35
  5. Step 5: Solve for x
    x = 2,212,871.35/1,922.02
  6. Step 6: Final answer
    x = 1,151.33

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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.