Home / 3,015.45-4,519.53-2,191.68

Finding the Fourth Proportional to 3,015.45, 4,519.53 and 2,191.68

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Solution

The fourth proportional to 3,015.45, 4,519.53 and 2,191.68 is: 3,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.45 : 4,519.53 = 2,191.68 : x
  2. Step 2: Convert to fraction form
    3,015.45/4,519.53 = 2,191.68/x
  3. Step 3: Cross multiply
    3,015.45x = 4,519.53 × 2,191.68
  4. Step 4: Simplify right side
    3,015.45x = 9,905,363.51
  5. Step 5: Solve for x
    x = 9,905,363.51/3,015.45
  6. Step 6: Final answer
    x = 3,284.87

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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.