Home / 3,409.72-5,113.26-1,218.04

Finding the Fourth Proportional to 3,409.72, 5,113.26 and 1,218.04

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Solution

The fourth proportional to 3,409.72, 5,113.26 and 1,218.04 is: 1,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.72 : 5,113.26 = 1,218.04 : x
  2. Step 2: Convert to fraction form
    3,409.72/5,113.26 = 1,218.04/x
  3. Step 3: Cross multiply
    3,409.72x = 5,113.26 × 1,218.04
  4. Step 4: Simplify right side
    3,409.72x = 6,228,155.21
  5. Step 5: Solve for x
    x = 6,228,155.21/3,409.72
  6. Step 6: Final answer
    x = 1,826.59

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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.