Home / 3,542.50-5,313.73-1,687.99

Finding the Fourth Proportional to 3,542.50, 5,313.73 and 1,687.99

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Solution

The fourth proportional to 3,542.50, 5,313.73 and 1,687.99 is: 2,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.50 : 5,313.73 = 1,687.99 : x
  2. Step 2: Convert to fraction form
    3,542.50/5,313.73 = 1,687.99/x
  3. Step 3: Cross multiply
    3,542.50x = 5,313.73 × 1,687.99
  4. Step 4: Simplify right side
    3,542.50x = 8,969,523.10
  5. Step 5: Solve for x
    x = 8,969,523.10/3,542.50
  6. Step 6: Final answer
    x = 2,531.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.