Home / 2,181.18-3,269.93-1,521.11

Finding the Fourth Proportional to 2,181.18, 3,269.93 and 1,521.11

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Solution

The fourth proportional to 2,181.18, 3,269.93 and 1,521.11 is: 2,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.18 : 3,269.93 = 1,521.11 : x
  2. Step 2: Convert to fraction form
    2,181.18/3,269.93 = 1,521.11/x
  3. Step 3: Cross multiply
    2,181.18x = 3,269.93 × 1,521.11
  4. Step 4: Simplify right side
    2,181.18x = 4,973,923.22
  5. Step 5: Solve for x
    x = 4,973,923.22/2,181.18
  6. Step 6: Final answer
    x = 2,280.38

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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.