Home / 2,212.96-3,319.40-1,521.36

Finding the Fourth Proportional to 2,212.96, 3,319.40 and 1,521.36

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Solution

The fourth proportional to 2,212.96, 3,319.40 and 1,521.36 is: 2,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.96 : 3,319.40 = 1,521.36 : x
  2. Step 2: Convert to fraction form
    2,212.96/3,319.40 = 1,521.36/x
  3. Step 3: Cross multiply
    2,212.96x = 3,319.40 × 1,521.36
  4. Step 4: Simplify right side
    2,212.96x = 5,050,002.38
  5. Step 5: Solve for x
    x = 5,050,002.38/2,212.96
  6. Step 6: Final answer
    x = 2,282.01

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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.