Home / 3,462.85-4,778.83-1,891.04

Finding the Fourth Proportional to 3,462.85, 4,778.83 and 1,891.04

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Solution

The fourth proportional to 3,462.85, 4,778.83 and 1,891.04 is: 2,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.85 : 4,778.83 = 1,891.04 : x
  2. Step 2: Convert to fraction form
    3,462.85/4,778.83 = 1,891.04/x
  3. Step 3: Cross multiply
    3,462.85x = 4,778.83 × 1,891.04
  4. Step 4: Simplify right side
    3,462.85x = 9,036,965.90
  5. Step 5: Solve for x
    x = 9,036,965.90/3,462.85
  6. Step 6: Final answer
    x = 2,609.69

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1.5x scale

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.