Home / 3,562.21-5,345.61-1,919.90

Finding the Fourth Proportional to 3,562.21, 5,345.61 and 1,919.90

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Solution

The fourth proportional to 3,562.21, 5,345.61 and 1,919.90 is: 2,881.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.21 : 5,345.61 = 1,919.90 : x
  2. Step 2: Convert to fraction form
    3,562.21/5,345.61 = 1,919.90/x
  3. Step 3: Cross multiply
    3,562.21x = 5,345.61 × 1,919.90
  4. Step 4: Simplify right side
    3,562.21x = 10,263,053.60
  5. Step 5: Solve for x
    x = 10,263,053.60/3,562.21
  6. Step 6: Final answer
    x = 2,881.09

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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.