Home / 3,558.48-4,909.56-1,986.28

Finding the Fourth Proportional to 3,558.48, 4,909.56 and 1,986.28

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Solution

The fourth proportional to 3,558.48, 4,909.56 and 1,986.28 is: 2,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.48 : 4,909.56 = 1,986.28 : x
  2. Step 2: Convert to fraction form
    3,558.48/4,909.56 = 1,986.28/x
  3. Step 3: Cross multiply
    3,558.48x = 4,909.56 × 1,986.28
  4. Step 4: Simplify right side
    3,558.48x = 9,751,760.84
  5. Step 5: Solve for x
    x = 9,751,760.84/3,558.48
  6. Step 6: Final answer
    x = 2,740.43

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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.