Home / 6,415.20-9,622.14-2,257.20

Finding the Fourth Proportional to 6,415.20, 9,622.14 and 2,257.20

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Solution

The fourth proportional to 6,415.20, 9,622.14 and 2,257.20 is: 3,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.20 : 9,622.14 = 2,257.20 : x
  2. Step 2: Convert to fraction form
    6,415.20/9,622.14 = 2,257.20/x
  3. Step 3: Cross multiply
    6,415.20x = 9,622.14 × 2,257.20
  4. Step 4: Simplify right side
    6,415.20x = 21,719,094.41
  5. Step 5: Solve for x
    x = 21,719,094.41/6,415.20
  6. Step 6: Final answer
    x = 3,385.57

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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.