Home / 4,992.21-6,892.13-3,315.90

Finding the Fourth Proportional to 4,992.21, 6,892.13 and 3,315.90

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Solution

The fourth proportional to 4,992.21, 6,892.13 and 3,315.90 is: 4,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.21 : 6,892.13 = 3,315.90 : x
  2. Step 2: Convert to fraction form
    4,992.21/6,892.13 = 3,315.90/x
  3. Step 3: Cross multiply
    4,992.21x = 6,892.13 × 3,315.90
  4. Step 4: Simplify right side
    4,992.21x = 22,853,597.29
  5. Step 5: Solve for x
    x = 22,853,597.29/4,992.21
  6. Step 6: Final answer
    x = 4,577.85

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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.