Home / 5,139.32-7,704.11-2,219.67

Finding the Fourth Proportional to 5,139.32, 7,704.11 and 2,219.67

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Solution

The fourth proportional to 5,139.32, 7,704.11 and 2,219.67 is: 3,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.32 : 7,704.11 = 2,219.67 : x
  2. Step 2: Convert to fraction form
    5,139.32/7,704.11 = 2,219.67/x
  3. Step 3: Cross multiply
    5,139.32x = 7,704.11 × 2,219.67
  4. Step 4: Simplify right side
    5,139.32x = 17,100,587.39
  5. Step 5: Solve for x
    x = 17,100,587.39/5,139.32
  6. Step 6: Final answer
    x = 3,327.41

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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.