Home / 6,419.13-9,629.50-2,203.20

Finding the Fourth Proportional to 6,419.13, 9,629.50 and 2,203.20

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Solution

The fourth proportional to 6,419.13, 9,629.50 and 2,203.20 is: 3,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.13 : 9,629.50 = 2,203.20 : x
  2. Step 2: Convert to fraction form
    6,419.13/9,629.50 = 2,203.20/x
  3. Step 3: Cross multiply
    6,419.13x = 9,629.50 × 2,203.20
  4. Step 4: Simplify right side
    6,419.13x = 21,215,713.02
  5. Step 5: Solve for x
    x = 21,215,713.02/6,419.13
  6. Step 6: Final answer
    x = 3,305.08

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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.