Home / 6,087.60-9,131.40-3,900.60

Finding the Fourth Proportional to 6,087.60, 9,131.40 and 3,900.60

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Solution

The fourth proportional to 6,087.60, 9,131.40 and 3,900.60 is: 5,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,087.60 : 9,131.40 = 3,900.60 : x
  2. Step 2: Convert to fraction form
    6,087.60/9,131.40 = 3,900.60/x
  3. Step 3: Cross multiply
    6,087.60x = 9,131.40 × 3,900.60
  4. Step 4: Simplify right side
    6,087.60x = 35,617,938.84
  5. Step 5: Solve for x
    x = 35,617,938.84/6,087.60
  6. Step 6: Final answer
    x = 5,850.90

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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.