Home / 3,247.32-4,871.70-1,515

Finding the Fourth Proportional to 3,247.32, 4,871.70 and 1,515

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Solution

The fourth proportional to 3,247.32, 4,871.70 and 1,515 is: 2,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.32 : 4,871.70 = 1,515 : x
  2. Step 2: Convert to fraction form
    3,247.32/4,871.70 = 1,515/x
  3. Step 3: Cross multiply
    3,247.32x = 4,871.70 × 1,515
  4. Step 4: Simplify right side
    3,247.32x = 7,380,625.50
  5. Step 5: Solve for x
    x = 7,380,625.50/3,247.32
  6. Step 6: Final answer
    x = 2,272.84

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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.