Home / 5,156.94-7,116.61-2,799.08

Finding the Fourth Proportional to 5,156.94, 7,116.61 and 2,799.08

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Solution

The fourth proportional to 5,156.94, 7,116.61 and 2,799.08 is: 3,862.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.94 : 7,116.61 = 2,799.08 : x
  2. Step 2: Convert to fraction form
    5,156.94/7,116.61 = 2,799.08/x
  3. Step 3: Cross multiply
    5,156.94x = 7,116.61 × 2,799.08
  4. Step 4: Simplify right side
    5,156.94x = 19,919,932.13
  5. Step 5: Solve for x
    x = 19,919,932.13/5,156.94
  6. Step 6: Final answer
    x = 3,862.75

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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.