Home / 2,127.12-3,187.54-1,866.48

Finding the Fourth Proportional to 2,127.12, 3,187.54 and 1,866.48

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Solution

The fourth proportional to 2,127.12, 3,187.54 and 1,866.48 is: 2,796.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.12 : 3,187.54 = 1,866.48 : x
  2. Step 2: Convert to fraction form
    2,127.12/3,187.54 = 1,866.48/x
  3. Step 3: Cross multiply
    2,127.12x = 3,187.54 × 1,866.48
  4. Step 4: Simplify right side
    2,127.12x = 5,949,479.66
  5. Step 5: Solve for x
    x = 5,949,479.66/2,127.12
  6. Step 6: Final answer
    x = 2,796.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.