Home / 2,161.10-3,241.64-700.20

Finding the Fourth Proportional to 2,161.10, 3,241.64 and 700.20

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Solution

The fourth proportional to 2,161.10, 3,241.64 and 700.20 is: 1,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.10 : 3,241.64 = 700.20 : x
  2. Step 2: Convert to fraction form
    2,161.10/3,241.64 = 700.20/x
  3. Step 3: Cross multiply
    2,161.10x = 3,241.64 × 700.20
  4. Step 4: Simplify right side
    2,161.10x = 2,269,792.83
  5. Step 5: Solve for x
    x = 2,269,792.83/2,161.10
  6. Step 6: Final answer
    x = 1,050.30

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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.