Home / 1,985.25-2,739.58-1,101.02

Finding the Fourth Proportional to 1,985.25, 2,739.58 and 1,101.02

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Solution

The fourth proportional to 1,985.25, 2,739.58 and 1,101.02 is: 1,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.25 : 2,739.58 = 1,101.02 : x
  2. Step 2: Convert to fraction form
    1,985.25/2,739.58 = 1,101.02/x
  3. Step 3: Cross multiply
    1,985.25x = 2,739.58 × 1,101.02
  4. Step 4: Simplify right side
    1,985.25x = 3,016,320.05
  5. Step 5: Solve for x
    x = 3,016,320.05/1,985.25
  6. Step 6: Final answer
    x = 1,519.36

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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.