Home / 6,415.47-9,620.78-2,517.75

Finding the Fourth Proportional to 6,415.47, 9,620.78 and 2,517.75

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Solution

The fourth proportional to 6,415.47, 9,620.78 and 2,517.75 is: 3,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.47 : 9,620.78 = 2,517.75 : x
  2. Step 2: Convert to fraction form
    6,415.47/9,620.78 = 2,517.75/x
  3. Step 3: Cross multiply
    6,415.47x = 9,620.78 × 2,517.75
  4. Step 4: Simplify right side
    6,415.47x = 24,222,706.26
  5. Step 5: Solve for x
    x = 24,222,706.26/6,415.47
  6. Step 6: Final answer
    x = 3,775.67

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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.