Home / 5,519.81-7,617.38-3,162.11

Finding the Fourth Proportional to 5,519.81, 7,617.38 and 3,162.11

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Solution

The fourth proportional to 5,519.81, 7,617.38 and 3,162.11 is: 4,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.81 : 7,617.38 = 3,162.11 : x
  2. Step 2: Convert to fraction form
    5,519.81/7,617.38 = 3,162.11/x
  3. Step 3: Cross multiply
    5,519.81x = 7,617.38 × 3,162.11
  4. Step 4: Simplify right side
    5,519.81x = 24,086,939.57
  5. Step 5: Solve for x
    x = 24,086,939.57/5,519.81
  6. Step 6: Final answer
    x = 4,363.72

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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.