Home / 4,640.96-6,990.40-4,232.64

Finding the Fourth Proportional to 4,640.96, 6,990.40 and 4,232.64

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Solution

The fourth proportional to 4,640.96, 6,990.40 and 4,232.64 is: 6,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.96 : 6,990.40 = 4,232.64 : x
  2. Step 2: Convert to fraction form
    4,640.96/6,990.40 = 4,232.64/x
  3. Step 3: Cross multiply
    4,640.96x = 6,990.40 × 4,232.64
  4. Step 4: Simplify right side
    4,640.96x = 29,587,846.66
  5. Step 5: Solve for x
    x = 29,587,846.66/4,640.96
  6. Step 6: Final answer
    x = 6,375.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.