Home / 6,503.06-9,756.41-2,120.78

Finding the Fourth Proportional to 6,503.06, 9,756.41 and 2,120.78

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Solution

The fourth proportional to 6,503.06, 9,756.41 and 2,120.78 is: 3,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503.06 : 9,756.41 = 2,120.78 : x
  2. Step 2: Convert to fraction form
    6,503.06/9,756.41 = 2,120.78/x
  3. Step 3: Cross multiply
    6,503.06x = 9,756.41 × 2,120.78
  4. Step 4: Simplify right side
    6,503.06x = 20,691,199.20
  5. Step 5: Solve for x
    x = 20,691,199.20/6,503.06
  6. Step 6: Final answer
    x = 3,181.76

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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.