Home / 2,198.85-3,298.26-555.40

Finding the Fourth Proportional to 2,198.85, 3,298.26 and 555.40

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Solution

The fourth proportional to 2,198.85, 3,298.26 and 555.40 is: 833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.85 : 3,298.26 = 555.40 : x
  2. Step 2: Convert to fraction form
    2,198.85/3,298.26 = 555.40/x
  3. Step 3: Cross multiply
    2,198.85x = 3,298.26 × 555.40
  4. Step 4: Simplify right side
    2,198.85x = 1,831,847.44
  5. Step 5: Solve for x
    x = 1,831,847.44/2,198.85
  6. Step 6: Final answer
    x = 833.09

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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.