Home / 6,520.40-9,756.32-3,889.34

Finding the Fourth Proportional to 6,520.40, 9,756.32 and 3,889.34

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Solution

The fourth proportional to 6,520.40, 9,756.32 and 3,889.34 is: 5,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.40 : 9,756.32 = 3,889.34 : x
  2. Step 2: Convert to fraction form
    6,520.40/9,756.32 = 3,889.34/x
  3. Step 3: Cross multiply
    6,520.40x = 9,756.32 × 3,889.34
  4. Step 4: Simplify right side
    6,520.40x = 37,945,645.63
  5. Step 5: Solve for x
    x = 37,945,645.63/6,520.40
  6. Step 6: Final answer
    x = 5,819.53

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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.