Home / 1,609.12-2,412.06-1,061.56

Finding the Fourth Proportional to 1,609.12, 2,412.06 and 1,061.56

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Solution

The fourth proportional to 1,609.12, 2,412.06 and 1,061.56 is: 1,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.12 : 2,412.06 = 1,061.56 : x
  2. Step 2: Convert to fraction form
    1,609.12/2,412.06 = 1,061.56/x
  3. Step 3: Cross multiply
    1,609.12x = 2,412.06 × 1,061.56
  4. Step 4: Simplify right side
    1,609.12x = 2,560,546.41
  5. Step 5: Solve for x
    x = 2,560,546.41/1,609.12
  6. Step 6: Final answer
    x = 1,591.27

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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.