Home / 3,389.75-5,085.61-1,542.34

Finding the Fourth Proportional to 3,389.75, 5,085.61 and 1,542.34

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Solution

The fourth proportional to 3,389.75, 5,085.61 and 1,542.34 is: 2,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.75 : 5,085.61 = 1,542.34 : x
  2. Step 2: Convert to fraction form
    3,389.75/5,085.61 = 1,542.34/x
  3. Step 3: Cross multiply
    3,389.75x = 5,085.61 × 1,542.34
  4. Step 4: Simplify right side
    3,389.75x = 7,843,739.73
  5. Step 5: Solve for x
    x = 7,843,739.73/3,389.75
  6. Step 6: Final answer
    x = 2,313.96

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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.