Home / 3,853.39-5,318.04-2,281.72

Finding the Fourth Proportional to 3,853.39, 5,318.04 and 2,281.72

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Solution

The fourth proportional to 3,853.39, 5,318.04 and 2,281.72 is: 3,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.39 : 5,318.04 = 2,281.72 : x
  2. Step 2: Convert to fraction form
    3,853.39/5,318.04 = 2,281.72/x
  3. Step 3: Cross multiply
    3,853.39x = 5,318.04 × 2,281.72
  4. Step 4: Simplify right side
    3,853.39x = 12,134,278.23
  5. Step 5: Solve for x
    x = 12,134,278.23/3,853.39
  6. Step 6: Final answer
    x = 3,148.99

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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.