Home / 2,181.81-3,011.33-1,237.62

Finding the Fourth Proportional to 2,181.81, 3,011.33 and 1,237.62

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Solution

The fourth proportional to 2,181.81, 3,011.33 and 1,237.62 is: 1,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.81 : 3,011.33 = 1,237.62 : x
  2. Step 2: Convert to fraction form
    2,181.81/3,011.33 = 1,237.62/x
  3. Step 3: Cross multiply
    2,181.81x = 3,011.33 × 1,237.62
  4. Step 4: Simplify right side
    2,181.81x = 3,726,882.23
  5. Step 5: Solve for x
    x = 3,726,882.23/2,181.81
  6. Step 6: Final answer
    x = 1,708.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.