Home / 4,320.18-6,481.10-2,991.58

Finding the Fourth Proportional to 4,320.18, 6,481.10 and 2,991.58

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Solution

The fourth proportional to 4,320.18, 6,481.10 and 2,991.58 is: 4,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.18 : 6,481.10 = 2,991.58 : x
  2. Step 2: Convert to fraction form
    4,320.18/6,481.10 = 2,991.58/x
  3. Step 3: Cross multiply
    4,320.18x = 6,481.10 × 2,991.58
  4. Step 4: Simplify right side
    4,320.18x = 19,388,729.14
  5. Step 5: Solve for x
    x = 19,388,729.14/4,320.18
  6. Step 6: Final answer
    x = 4,487.94

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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.