Home / 1,985.27-2,739.87-1,101.35

Finding the Fourth Proportional to 1,985.27, 2,739.87 and 1,101.35

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Solution

The fourth proportional to 1,985.27, 2,739.87 and 1,101.35 is: 1,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.27 : 2,739.87 = 1,101.35 : x
  2. Step 2: Convert to fraction form
    1,985.27/2,739.87 = 1,101.35/x
  3. Step 3: Cross multiply
    1,985.27x = 2,739.87 × 1,101.35
  4. Step 4: Simplify right side
    1,985.27x = 3,017,562.67
  5. Step 5: Solve for x
    x = 3,017,562.67/1,985.27
  6. Step 6: Final answer
    x = 1,519.98

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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.