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Finding the Fourth Proportional to 4,992.95, 6,891.17 and 2,897.07

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Solution

The fourth proportional to 4,992.95, 6,891.17 and 2,897.07 is: 3,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.95 : 6,891.17 = 2,897.07 : x
  2. Step 2: Convert to fraction form
    4,992.95/6,891.17 = 2,897.07/x
  3. Step 3: Cross multiply
    4,992.95x = 6,891.17 × 2,897.07
  4. Step 4: Simplify right side
    4,992.95x = 19,964,187.39
  5. Step 5: Solve for x
    x = 19,964,187.39/4,992.95
  6. Step 6: Final answer
    x = 3,998.48

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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.