Home / 2,231.77-3,079.81-1,237.05

Finding the Fourth Proportional to 2,231.77, 3,079.81 and 1,237.05

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Solution

The fourth proportional to 2,231.77, 3,079.81 and 1,237.05 is: 1,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.77 : 3,079.81 = 1,237.05 : x
  2. Step 2: Convert to fraction form
    2,231.77/3,079.81 = 1,237.05/x
  3. Step 3: Cross multiply
    2,231.77x = 3,079.81 × 1,237.05
  4. Step 4: Simplify right side
    2,231.77x = 3,809,878.96
  5. Step 5: Solve for x
    x = 3,809,878.96/2,231.77
  6. Step 6: Final answer
    x = 1,707.11

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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.