Home / 2,776.62-4,166.99-1,315.77

Finding the Fourth Proportional to 2,776.62, 4,166.99 and 1,315.77

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Solution

The fourth proportional to 2,776.62, 4,166.99 and 1,315.77 is: 1,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.62 : 4,166.99 = 1,315.77 : x
  2. Step 2: Convert to fraction form
    2,776.62/4,166.99 = 1,315.77/x
  3. Step 3: Cross multiply
    2,776.62x = 4,166.99 × 1,315.77
  4. Step 4: Simplify right side
    2,776.62x = 5,482,793.85
  5. Step 5: Solve for x
    x = 5,482,793.85/2,776.62
  6. Step 6: Final answer
    x = 1,974.63

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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.