Home / 4,086.78-6,120.42-2,235.12

Finding the Fourth Proportional to 4,086.78, 6,120.42 and 2,235.12

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Solution

The fourth proportional to 4,086.78, 6,120.42 and 2,235.12 is: 3,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.78 : 6,120.42 = 2,235.12 : x
  2. Step 2: Convert to fraction form
    4,086.78/6,120.42 = 2,235.12/x
  3. Step 3: Cross multiply
    4,086.78x = 6,120.42 × 2,235.12
  4. Step 4: Simplify right side
    4,086.78x = 13,679,873.15
  5. Step 5: Solve for x
    x = 13,679,873.15/4,086.78
  6. Step 6: Final answer
    x = 3,347.35

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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.