Home / 3,521.22-5,281.82-1,412.79

Finding the Fourth Proportional to 3,521.22, 5,281.82 and 1,412.79

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Solution

The fourth proportional to 3,521.22, 5,281.82 and 1,412.79 is: 2,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.22 : 5,281.82 = 1,412.79 : x
  2. Step 2: Convert to fraction form
    3,521.22/5,281.82 = 1,412.79/x
  3. Step 3: Cross multiply
    3,521.22x = 5,281.82 × 1,412.79
  4. Step 4: Simplify right side
    3,521.22x = 7,462,102.48
  5. Step 5: Solve for x
    x = 7,462,102.48/3,521.22
  6. Step 6: Final answer
    x = 2,119.18

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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.