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Finding the Fourth Proportional to 1,463.42, 2,020.87 and 940.37

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Solution

The fourth proportional to 1,463.42, 2,020.87 and 940.37 is: 1,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.42 : 2,020.87 = 940.37 : x
  2. Step 2: Convert to fraction form
    1,463.42/2,020.87 = 940.37/x
  3. Step 3: Cross multiply
    1,463.42x = 2,020.87 × 940.37
  4. Step 4: Simplify right side
    1,463.42x = 1,900,353.07
  5. Step 5: Solve for x
    x = 1,900,353.07/1,463.42
  6. Step 6: Final answer
    x = 1,298.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.