Home / 7,612.32-11,415.60-3,231.84

Finding the Fourth Proportional to 7,612.32, 11,415.60 and 3,231.84

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Solution

The fourth proportional to 7,612.32, 11,415.60 and 3,231.84 is: 4,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.32 : 11,415.60 = 3,231.84 : x
  2. Step 2: Convert to fraction form
    7,612.32/11,415.60 = 3,231.84/x
  3. Step 3: Cross multiply
    7,612.32x = 11,415.60 × 3,231.84
  4. Step 4: Simplify right side
    7,612.32x = 36,893,392.70
  5. Step 5: Solve for x
    x = 36,893,392.70/7,612.32
  6. Step 6: Final answer
    x = 4,846.54

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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.