Home / 3,952.85-5,455.19-2,274.23

Finding the Fourth Proportional to 3,952.85, 5,455.19 and 2,274.23

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Solution

The fourth proportional to 3,952.85, 5,455.19 and 2,274.23 is: 3,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.85 : 5,455.19 = 2,274.23 : x
  2. Step 2: Convert to fraction form
    3,952.85/5,455.19 = 2,274.23/x
  3. Step 3: Cross multiply
    3,952.85x = 5,455.19 × 2,274.23
  4. Step 4: Simplify right side
    3,952.85x = 12,406,318.11
  5. Step 5: Solve for x
    x = 12,406,318.11/3,952.85
  6. Step 6: Final answer
    x = 3,138.57

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Half scale
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Double scale
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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.