Home / 3,542.09-5,315.67-2,857.03

Finding the Fourth Proportional to 3,542.09, 5,315.67 and 2,857.03

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Solution

The fourth proportional to 3,542.09, 5,315.67 and 2,857.03 is: 4,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.09 : 5,315.67 = 2,857.03 : x
  2. Step 2: Convert to fraction form
    3,542.09/5,315.67 = 2,857.03/x
  3. Step 3: Cross multiply
    3,542.09x = 5,315.67 × 2,857.03
  4. Step 4: Simplify right side
    3,542.09x = 15,187,015.37
  5. Step 5: Solve for x
    x = 15,187,015.37/3,542.09
  6. Step 6: Final answer
    x = 4,287.59

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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.