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Finding the Fourth Proportional to 1,867.38, 2,796.63 and 940.02

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Solution

The fourth proportional to 1,867.38, 2,796.63 and 940.02 is: 1,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.38 : 2,796.63 = 940.02 : x
  2. Step 2: Convert to fraction form
    1,867.38/2,796.63 = 940.02/x
  3. Step 3: Cross multiply
    1,867.38x = 2,796.63 × 940.02
  4. Step 4: Simplify right side
    1,867.38x = 2,628,888.13
  5. Step 5: Solve for x
    x = 2,628,888.13/1,867.38
  6. Step 6: Final answer
    x = 1,407.79

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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.