Home / 6,436.80-9,656.11-3,150.09

Finding the Fourth Proportional to 6,436.80, 9,656.11 and 3,150.09

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Solution

The fourth proportional to 6,436.80, 9,656.11 and 3,150.09 is: 4,725.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.80 : 9,656.11 = 3,150.09 : x
  2. Step 2: Convert to fraction form
    6,436.80/9,656.11 = 3,150.09/x
  3. Step 3: Cross multiply
    6,436.80x = 9,656.11 × 3,150.09
  4. Step 4: Simplify right side
    6,436.80x = 30,417,619.49
  5. Step 5: Solve for x
    x = 30,417,619.49/6,436.80
  6. Step 6: Final answer
    x = 4,725.58

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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.