Home / 1,039.28-1,556.22-606.20

Finding the Fourth Proportional to 1,039.28, 1,556.22 and 606.20

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Solution

The fourth proportional to 1,039.28, 1,556.22 and 606.20 is: 907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.28 : 1,556.22 = 606.20 : x
  2. Step 2: Convert to fraction form
    1,039.28/1,556.22 = 606.20/x
  3. Step 3: Cross multiply
    1,039.28x = 1,556.22 × 606.20
  4. Step 4: Simplify right side
    1,039.28x = 943,380.56
  5. Step 5: Solve for x
    x = 943,380.56/1,039.28
  6. Step 6: Final answer
    x = 907.73

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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.