Home / 3,853.50-5,317.44-2,174.76

Finding the Fourth Proportional to 3,853.50, 5,317.44 and 2,174.76

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Solution

The fourth proportional to 3,853.50, 5,317.44 and 2,174.76 is: 3,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.50 : 5,317.44 = 2,174.76 : x
  2. Step 2: Convert to fraction form
    3,853.50/5,317.44 = 2,174.76/x
  3. Step 3: Cross multiply
    3,853.50x = 5,317.44 × 2,174.76
  4. Step 4: Simplify right side
    3,853.50x = 11,564,155.81
  5. Step 5: Solve for x
    x = 11,564,155.81/3,853.50
  6. Step 6: Final answer
    x = 3,000.95

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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.