Home / 2,181.13-3,270.32-1,439.93

Finding the Fourth Proportional to 2,181.13, 3,270.32 and 1,439.93

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Solution

The fourth proportional to 2,181.13, 3,270.32 and 1,439.93 is: 2,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.13 : 3,270.32 = 1,439.93 : x
  2. Step 2: Convert to fraction form
    2,181.13/3,270.32 = 1,439.93/x
  3. Step 3: Cross multiply
    2,181.13x = 3,270.32 × 1,439.93
  4. Step 4: Simplify right side
    2,181.13x = 4,709,027.96
  5. Step 5: Solve for x
    x = 4,709,027.96/2,181.13
  6. Step 6: Final answer
    x = 2,158.99

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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.