Home / 3,631.61-5,012.42-2,215.77

Finding the Fourth Proportional to 3,631.61, 5,012.42 and 2,215.77

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Solution

The fourth proportional to 3,631.61, 5,012.42 and 2,215.77 is: 3,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.61 : 5,012.42 = 2,215.77 : x
  2. Step 2: Convert to fraction form
    3,631.61/5,012.42 = 2,215.77/x
  3. Step 3: Cross multiply
    3,631.61x = 5,012.42 × 2,215.77
  4. Step 4: Simplify right side
    3,631.61x = 11,106,369.86
  5. Step 5: Solve for x
    x = 11,106,369.86/3,631.61
  6. Step 6: Final answer
    x = 3,058.25

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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.