Home / 1,010.20-1,523.01-939.73

Finding the Fourth Proportional to 1,010.20, 1,523.01 and 939.73

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Solution

The fourth proportional to 1,010.20, 1,523.01 and 939.73 is: 1,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.20 : 1,523.01 = 939.73 : x
  2. Step 2: Convert to fraction form
    1,010.20/1,523.01 = 939.73/x
  3. Step 3: Cross multiply
    1,010.20x = 1,523.01 × 939.73
  4. Step 4: Simplify right side
    1,010.20x = 1,431,218.19
  5. Step 5: Solve for x
    x = 1,431,218.19/1,010.20
  6. Step 6: Final answer
    x = 1,416.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.