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Finding the Fourth Proportional to 2,999.86, 4,491.15 and 2,770.18

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Solution

The fourth proportional to 2,999.86, 4,491.15 and 2,770.18 is: 4,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.86 : 4,491.15 = 2,770.18 : x
  2. Step 2: Convert to fraction form
    2,999.86/4,491.15 = 2,770.18/x
  3. Step 3: Cross multiply
    2,999.86x = 4,491.15 × 2,770.18
  4. Step 4: Simplify right side
    2,999.86x = 12,441,293.91
  5. Step 5: Solve for x
    x = 12,441,293.91/2,999.86
  6. Step 6: Final answer
    x = 4,147.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.