Home / 5,529.92-7,630.71-3,139.13

Finding the Fourth Proportional to 5,529.92, 7,630.71 and 3,139.13

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Solution

The fourth proportional to 5,529.92, 7,630.71 and 3,139.13 is: 4,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.92 : 7,630.71 = 3,139.13 : x
  2. Step 2: Convert to fraction form
    5,529.92/7,630.71 = 3,139.13/x
  3. Step 3: Cross multiply
    5,529.92x = 7,630.71 × 3,139.13
  4. Step 4: Simplify right side
    5,529.92x = 23,953,790.68
  5. Step 5: Solve for x
    x = 23,953,790.68/5,529.92
  6. Step 6: Final answer
    x = 4,331.67

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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.