Home / 3,557.96-4,910.12-1,986.36

Finding the Fourth Proportional to 3,557.96, 4,910.12 and 1,986.36

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Solution

The fourth proportional to 3,557.96, 4,910.12 and 1,986.36 is: 2,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.96 : 4,910.12 = 1,986.36 : x
  2. Step 2: Convert to fraction form
    3,557.96/4,910.12 = 1,986.36/x
  3. Step 3: Cross multiply
    3,557.96x = 4,910.12 × 1,986.36
  4. Step 4: Simplify right side
    3,557.96x = 9,753,265.96
  5. Step 5: Solve for x
    x = 9,753,265.96/3,557.96
  6. Step 6: Final answer
    x = 2,741.25

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1.5x scale

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.