Home / 3,853.96-5,316.72-2,455.84

Finding the Fourth Proportional to 3,853.96, 5,316.72 and 2,455.84

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Solution

The fourth proportional to 3,853.96, 5,316.72 and 2,455.84 is: 3,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.96 : 5,316.72 = 2,455.84 : x
  2. Step 2: Convert to fraction form
    3,853.96/5,316.72 = 2,455.84/x
  3. Step 3: Cross multiply
    3,853.96x = 5,316.72 × 2,455.84
  4. Step 4: Simplify right side
    3,853.96x = 13,057,013.64
  5. Step 5: Solve for x
    x = 13,057,013.64/3,853.96
  6. Step 6: Final answer
    x = 3,387.95

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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.