Home / 1,634.76-2,448.77-1,087.20

Finding the Fourth Proportional to 1,634.76, 2,448.77 and 1,087.20

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Solution

The fourth proportional to 1,634.76, 2,448.77 and 1,087.20 is: 1,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.76 : 2,448.77 = 1,087.20 : x
  2. Step 2: Convert to fraction form
    1,634.76/2,448.77 = 1,087.20/x
  3. Step 3: Cross multiply
    1,634.76x = 2,448.77 × 1,087.20
  4. Step 4: Simplify right side
    1,634.76x = 2,662,297.31
  5. Step 5: Solve for x
    x = 2,662,297.31/1,634.76
  6. Step 6: Final answer
    x = 1,628.56

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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.