Home / 3,837.68-5,295.72-2,159.12

Finding the Fourth Proportional to 3,837.68, 5,295.72 and 2,159.12

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Solution

The fourth proportional to 3,837.68, 5,295.72 and 2,159.12 is: 2,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.68 : 5,295.72 = 2,159.12 : x
  2. Step 2: Convert to fraction form
    3,837.68/5,295.72 = 2,159.12/x
  3. Step 3: Cross multiply
    3,837.68x = 5,295.72 × 2,159.12
  4. Step 4: Simplify right side
    3,837.68x = 11,434,094.97
  5. Step 5: Solve for x
    x = 11,434,094.97/3,837.68
  6. Step 6: Final answer
    x = 2,979.43

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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.