Home / 6,140.79-9,190.13-3,799.89

Finding the Fourth Proportional to 6,140.79, 9,190.13 and 3,799.89

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Solution

The fourth proportional to 6,140.79, 9,190.13 and 3,799.89 is: 5,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.79 : 9,190.13 = 3,799.89 : x
  2. Step 2: Convert to fraction form
    6,140.79/9,190.13 = 3,799.89/x
  3. Step 3: Cross multiply
    6,140.79x = 9,190.13 × 3,799.89
  4. Step 4: Simplify right side
    6,140.79x = 34,921,464.09
  5. Step 5: Solve for x
    x = 34,921,464.09/6,140.79
  6. Step 6: Final answer
    x = 5,686.80

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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.