Home / 3,390.48-5,087.25-2,157.57

Finding the Fourth Proportional to 3,390.48, 5,087.25 and 2,157.57

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Solution

The fourth proportional to 3,390.48, 5,087.25 and 2,157.57 is: 3,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.48 : 5,087.25 = 2,157.57 : x
  2. Step 2: Convert to fraction form
    3,390.48/5,087.25 = 2,157.57/x
  3. Step 3: Cross multiply
    3,390.48x = 5,087.25 × 2,157.57
  4. Step 4: Simplify right side
    3,390.48x = 10,976,097.98
  5. Step 5: Solve for x
    x = 10,976,097.98/3,390.48
  6. Step 6: Final answer
    x = 3,237.33

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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.