Home / 3,733.78-5,152.62-2,161.88

Finding the Fourth Proportional to 3,733.78, 5,152.62 and 2,161.88

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Solution

The fourth proportional to 3,733.78, 5,152.62 and 2,161.88 is: 2,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,733.78 : 5,152.62 = 2,161.88 : x
  2. Step 2: Convert to fraction form
    3,733.78/5,152.62 = 2,161.88/x
  3. Step 3: Cross multiply
    3,733.78x = 5,152.62 × 2,161.88
  4. Step 4: Simplify right side
    3,733.78x = 11,139,346.13
  5. Step 5: Solve for x
    x = 11,139,346.13/3,733.78
  6. Step 6: Final answer
    x = 2,983.40

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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.