Home / 3,857.05-5,322.72-2,088.66

Finding the Fourth Proportional to 3,857.05, 5,322.72 and 2,088.66

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Solution

The fourth proportional to 3,857.05, 5,322.72 and 2,088.66 is: 2,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.05 : 5,322.72 = 2,088.66 : x
  2. Step 2: Convert to fraction form
    3,857.05/5,322.72 = 2,088.66/x
  3. Step 3: Cross multiply
    3,857.05x = 5,322.72 × 2,088.66
  4. Step 4: Simplify right side
    3,857.05x = 11,117,325.74
  5. Step 5: Solve for x
    x = 11,117,325.74/3,857.05
  6. Step 6: Final answer
    x = 2,882.34

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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.