Home / 3,859.11-5,325.48-2,180.25

Finding the Fourth Proportional to 3,859.11, 5,325.48 and 2,180.25

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Solution

The fourth proportional to 3,859.11, 5,325.48 and 2,180.25 is: 3,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.11 : 5,325.48 = 2,180.25 : x
  2. Step 2: Convert to fraction form
    3,859.11/5,325.48 = 2,180.25/x
  3. Step 3: Cross multiply
    3,859.11x = 5,325.48 × 2,180.25
  4. Step 4: Simplify right side
    3,859.11x = 11,610,877.77
  5. Step 5: Solve for x
    x = 11,610,877.77/3,859.11
  6. Step 6: Final answer
    x = 3,008.69

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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.