Home / 7,542.60-11,313.90-3,438.60

Finding the Fourth Proportional to 7,542.60, 11,313.90 and 3,438.60

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Solution

The fourth proportional to 7,542.60, 11,313.90 and 3,438.60 is: 5,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.60 : 11,313.90 = 3,438.60 : x
  2. Step 2: Convert to fraction form
    7,542.60/11,313.90 = 3,438.60/x
  3. Step 3: Cross multiply
    7,542.60x = 11,313.90 × 3,438.60
  4. Step 4: Simplify right side
    7,542.60x = 38,903,976.54
  5. Step 5: Solve for x
    x = 38,903,976.54/7,542.60
  6. Step 6: Final answer
    x = 5,157.90

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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.