Home / 3,558.24-4,910.48-1,986.40

Finding the Fourth Proportional to 3,558.24, 4,910.48 and 1,986.40

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Solution

The fourth proportional to 3,558.24, 4,910.48 and 1,986.40 is: 2,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.24 : 4,910.48 = 1,986.40 : x
  2. Step 2: Convert to fraction form
    3,558.24/4,910.48 = 1,986.40/x
  3. Step 3: Cross multiply
    3,558.24x = 4,910.48 × 1,986.40
  4. Step 4: Simplify right side
    3,558.24x = 9,754,177.47
  5. Step 5: Solve for x
    x = 9,754,177.47/3,558.24
  6. Step 6: Final answer
    x = 2,741.29

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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.