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Finding the Fourth Proportional to 1,463.79, 2,021.38 and 940.73

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Solution

The fourth proportional to 1,463.79, 2,021.38 and 940.73 is: 1,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.79 : 2,021.38 = 940.73 : x
  2. Step 2: Convert to fraction form
    1,463.79/2,021.38 = 940.73/x
  3. Step 3: Cross multiply
    1,463.79x = 2,021.38 × 940.73
  4. Step 4: Simplify right side
    1,463.79x = 1,901,575.51
  5. Step 5: Solve for x
    x = 1,901,575.51/1,463.79
  6. Step 6: Final answer
    x = 1,299.08

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1.5x scale

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.