Home / 2,780.76-4,162.62-2,000.73

Finding the Fourth Proportional to 2,780.76, 4,162.62 and 2,000.73

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Solution

The fourth proportional to 2,780.76, 4,162.62 and 2,000.73 is: 2,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.76 : 4,162.62 = 2,000.73 : x
  2. Step 2: Convert to fraction form
    2,780.76/4,162.62 = 2,000.73/x
  3. Step 3: Cross multiply
    2,780.76x = 4,162.62 × 2,000.73
  4. Step 4: Simplify right side
    2,780.76x = 8,328,278.71
  5. Step 5: Solve for x
    x = 8,328,278.71/2,780.76
  6. Step 6: Final answer
    x = 2,994.96

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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.