Home / 5,529.81-7,630.82-3,139.14

Finding the Fourth Proportional to 5,529.81, 7,630.82 and 3,139.14

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Solution

The fourth proportional to 5,529.81, 7,630.82 and 3,139.14 is: 4,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.81 : 7,630.82 = 3,139.14 : x
  2. Step 2: Convert to fraction form
    5,529.81/7,630.82 = 3,139.14/x
  3. Step 3: Cross multiply
    5,529.81x = 7,630.82 × 3,139.14
  4. Step 4: Simplify right side
    5,529.81x = 23,954,212.29
  5. Step 5: Solve for x
    x = 23,954,212.29/5,529.81
  6. Step 6: Final answer
    x = 4,331.83

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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.