Home / 3,772.13-5,204.70-2,178.77

Finding the Fourth Proportional to 3,772.13, 5,204.70 and 2,178.77

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Solution

The fourth proportional to 3,772.13, 5,204.70 and 2,178.77 is: 3,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.13 : 5,204.70 = 2,178.77 : x
  2. Step 2: Convert to fraction form
    3,772.13/5,204.70 = 2,178.77/x
  3. Step 3: Cross multiply
    3,772.13x = 5,204.70 × 2,178.77
  4. Step 4: Simplify right side
    3,772.13x = 11,339,818.20
  5. Step 5: Solve for x
    x = 11,339,818.20/3,772.13
  6. Step 6: Final answer
    x = 3,006.21

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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.