Home / 6,419.45-9,631.91-2,261.72

Finding the Fourth Proportional to 6,419.45, 9,631.91 and 2,261.72

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Solution

The fourth proportional to 6,419.45, 9,631.91 and 2,261.72 is: 3,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.45 : 9,631.91 = 2,261.72 : x
  2. Step 2: Convert to fraction form
    6,419.45/9,631.91 = 2,261.72/x
  3. Step 3: Cross multiply
    6,419.45x = 9,631.91 × 2,261.72
  4. Step 4: Simplify right side
    6,419.45x = 21,784,713.22
  5. Step 5: Solve for x
    x = 21,784,713.22/6,419.45
  6. Step 6: Final answer
    x = 3,393.55

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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.