Home / 3,066.50-4,234.58-1,947.80

Finding the Fourth Proportional to 3,066.50, 4,234.58 and 1,947.80

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Solution

The fourth proportional to 3,066.50, 4,234.58 and 1,947.80 is: 2,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.50 : 4,234.58 = 1,947.80 : x
  2. Step 2: Convert to fraction form
    3,066.50/4,234.58 = 1,947.80/x
  3. Step 3: Cross multiply
    3,066.50x = 4,234.58 × 1,947.80
  4. Step 4: Simplify right side
    3,066.50x = 8,248,099.26
  5. Step 5: Solve for x
    x = 8,248,099.26/3,066.50
  6. Step 6: Final answer
    x = 2,689.74

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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.