Home / 5,439.11-8,152.92-2,147.67

Finding the Fourth Proportional to 5,439.11, 8,152.92 and 2,147.67

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Solution

The fourth proportional to 5,439.11, 8,152.92 and 2,147.67 is: 3,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.11 : 8,152.92 = 2,147.67 : x
  2. Step 2: Convert to fraction form
    5,439.11/8,152.92 = 2,147.67/x
  3. Step 3: Cross multiply
    5,439.11x = 8,152.92 × 2,147.67
  4. Step 4: Simplify right side
    5,439.11x = 17,509,781.70
  5. Step 5: Solve for x
    x = 17,509,781.70/5,439.11
  6. Step 6: Final answer
    x = 3,219.24

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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.