Home / 6,111.40-9,163.05-2,215.30

Finding the Fourth Proportional to 6,111.40, 9,163.05 and 2,215.30

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Solution

The fourth proportional to 6,111.40, 9,163.05 and 2,215.30 is: 3,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.40 : 9,163.05 = 2,215.30 : x
  2. Step 2: Convert to fraction form
    6,111.40/9,163.05 = 2,215.30/x
  3. Step 3: Cross multiply
    6,111.40x = 9,163.05 × 2,215.30
  4. Step 4: Simplify right side
    6,111.40x = 20,298,904.67
  5. Step 5: Solve for x
    x = 20,298,904.67/6,111.40
  6. Step 6: Final answer
    x = 3,321.48

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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.