Home / 3,065.10-4,230.78-2,908.35

Finding the Fourth Proportional to 3,065.10, 4,230.78 and 2,908.35

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Solution

The fourth proportional to 3,065.10, 4,230.78 and 2,908.35 is: 4,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.10 : 4,230.78 = 2,908.35 : x
  2. Step 2: Convert to fraction form
    3,065.10/4,230.78 = 2,908.35/x
  3. Step 3: Cross multiply
    3,065.10x = 4,230.78 × 2,908.35
  4. Step 4: Simplify right side
    3,065.10x = 12,304,589.01
  5. Step 5: Solve for x
    x = 12,304,589.01/3,065.10
  6. Step 6: Final answer
    x = 4,014.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.