Home / 2,776.45-4,162.62-1,680.58

Finding the Fourth Proportional to 2,776.45, 4,162.62 and 1,680.58

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Solution

The fourth proportional to 2,776.45, 4,162.62 and 1,680.58 is: 2,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.45 : 4,162.62 = 1,680.58 : x
  2. Step 2: Convert to fraction form
    2,776.45/4,162.62 = 1,680.58/x
  3. Step 3: Cross multiply
    2,776.45x = 4,162.62 × 1,680.58
  4. Step 4: Simplify right side
    2,776.45x = 6,995,615.92
  5. Step 5: Solve for x
    x = 6,995,615.92/2,776.45
  6. Step 6: Final answer
    x = 2,519.63

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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.