Home / 3,558.84-4,911.30-1,986.90

Finding the Fourth Proportional to 3,558.84, 4,911.30 and 1,986.90

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Solution

The fourth proportional to 3,558.84, 4,911.30 and 1,986.90 is: 2,741.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.84 : 4,911.30 = 1,986.90 : x
  2. Step 2: Convert to fraction form
    3,558.84/4,911.30 = 1,986.90/x
  3. Step 3: Cross multiply
    3,558.84x = 4,911.30 × 1,986.90
  4. Step 4: Simplify right side
    3,558.84x = 9,758,261.97
  5. Step 5: Solve for x
    x = 9,758,261.97/3,558.84
  6. Step 6: Final answer
    x = 2,741.98

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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.