Home / 3,558.11-4,909.75-1,986.50

Finding the Fourth Proportional to 3,558.11, 4,909.75 and 1,986.50

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Solution

The fourth proportional to 3,558.11, 4,909.75 and 1,986.50 is: 2,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.11 : 4,909.75 = 1,986.50 : x
  2. Step 2: Convert to fraction form
    3,558.11/4,909.75 = 1,986.50/x
  3. Step 3: Cross multiply
    3,558.11x = 4,909.75 × 1,986.50
  4. Step 4: Simplify right side
    3,558.11x = 9,753,225.68
  5. Step 5: Solve for x
    x = 9,753,225.68/3,558.11
  6. Step 6: Final answer
    x = 2,741.13

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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.