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Finding the Fourth Proportional to 4,992.81, 6,892.89 and 3,316.51

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Solution

The fourth proportional to 4,992.81, 6,892.89 and 3,316.51 is: 4,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.81 : 6,892.89 = 3,316.51 : x
  2. Step 2: Convert to fraction form
    4,992.81/6,892.89 = 3,316.51/x
  3. Step 3: Cross multiply
    4,992.81x = 6,892.89 × 3,316.51
  4. Step 4: Simplify right side
    4,992.81x = 22,860,338.61
  5. Step 5: Solve for x
    x = 22,860,338.61/4,992.81
  6. Step 6: Final answer
    x = 4,578.65

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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.