Home / 2,181.31-3,010.64-1,237.12

Finding the Fourth Proportional to 2,181.31, 3,010.64 and 1,237.12

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Solution

The fourth proportional to 2,181.31, 3,010.64 and 1,237.12 is: 1,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.31 : 3,010.64 = 1,237.12 : x
  2. Step 2: Convert to fraction form
    2,181.31/3,010.64 = 1,237.12/x
  3. Step 3: Cross multiply
    2,181.31x = 3,010.64 × 1,237.12
  4. Step 4: Simplify right side
    2,181.31x = 3,724,522.96
  5. Step 5: Solve for x
    x = 3,724,522.96/2,181.31
  6. Step 6: Final answer
    x = 1,707.47

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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.