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Finding the Fourth Proportional to 3,314.86, 4,992.02 and 2,887.18

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Solution

The fourth proportional to 3,314.86, 4,992.02 and 2,887.18 is: 4,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.86 : 4,992.02 = 2,887.18 : x
  2. Step 2: Convert to fraction form
    3,314.86/4,992.02 = 2,887.18/x
  3. Step 3: Cross multiply
    3,314.86x = 4,992.02 × 2,887.18
  4. Step 4: Simplify right side
    3,314.86x = 14,412,860.30
  5. Step 5: Solve for x
    x = 14,412,860.30/3,314.86
  6. Step 6: Final answer
    x = 4,347.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.