Home / 2,634.18-3,631.80-2,160.36

Finding the Fourth Proportional to 2,634.18, 3,631.80 and 2,160.36

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Solution

The fourth proportional to 2,634.18, 3,631.80 and 2,160.36 is: 2,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.18 : 3,631.80 = 2,160.36 : x
  2. Step 2: Convert to fraction form
    2,634.18/3,631.80 = 2,160.36/x
  3. Step 3: Cross multiply
    2,634.18x = 3,631.80 × 2,160.36
  4. Step 4: Simplify right side
    2,634.18x = 7,845,995.45
  5. Step 5: Solve for x
    x = 7,845,995.45/2,634.18
  6. Step 6: Final answer
    x = 2,978.53

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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.