Home / 3,176.42-4,387.64-2,439.48

Finding the Fourth Proportional to 3,176.42, 4,387.64 and 2,439.48

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Solution

The fourth proportional to 3,176.42, 4,387.64 and 2,439.48 is: 3,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.42 : 4,387.64 = 2,439.48 : x
  2. Step 2: Convert to fraction form
    3,176.42/4,387.64 = 2,439.48/x
  3. Step 3: Cross multiply
    3,176.42x = 4,387.64 × 2,439.48
  4. Step 4: Simplify right side
    3,176.42x = 10,703,551.94
  5. Step 5: Solve for x
    x = 10,703,551.94/3,176.42
  6. Step 6: Final answer
    x = 3,369.69

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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.