Home / 6,119.25-9,158.06-3,780.78

Finding the Fourth Proportional to 6,119.25, 9,158.06 and 3,780.78

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Solution

The fourth proportional to 6,119.25, 9,158.06 and 3,780.78 is: 5,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.25 : 9,158.06 = 3,780.78 : x
  2. Step 2: Convert to fraction form
    6,119.25/9,158.06 = 3,780.78/x
  3. Step 3: Cross multiply
    6,119.25x = 9,158.06 × 3,780.78
  4. Step 4: Simplify right side
    6,119.25x = 34,624,585.20
  5. Step 5: Solve for x
    x = 34,624,585.20/6,119.25
  6. Step 6: Final answer
    x = 5,658.31

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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.