Home / 4,109.13-6,163.70-1,187.46

Finding the Fourth Proportional to 4,109.13, 6,163.70 and 1,187.46

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Solution

The fourth proportional to 4,109.13, 6,163.70 and 1,187.46 is: 1,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.13 : 6,163.70 = 1,187.46 : x
  2. Step 2: Convert to fraction form
    4,109.13/6,163.70 = 1,187.46/x
  3. Step 3: Cross multiply
    4,109.13x = 6,163.70 × 1,187.46
  4. Step 4: Simplify right side
    4,109.13x = 7,319,141.26
  5. Step 5: Solve for x
    x = 7,319,141.26/4,109.13
  6. Step 6: Final answer
    x = 1,781.19

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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.