Home / 3,995.79-5,508.81-2,799.17

Finding the Fourth Proportional to 3,995.79, 5,508.81 and 2,799.17

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Solution

The fourth proportional to 3,995.79, 5,508.81 and 2,799.17 is: 3,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.79 : 5,508.81 = 2,799.17 : x
  2. Step 2: Convert to fraction form
    3,995.79/5,508.81 = 2,799.17/x
  3. Step 3: Cross multiply
    3,995.79x = 5,508.81 × 2,799.17
  4. Step 4: Simplify right side
    3,995.79x = 15,420,068.14
  5. Step 5: Solve for x
    x = 15,420,068.14/3,995.79
  6. Step 6: Final answer
    x = 3,859.08

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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.