Home / 4,109.74-6,164.30-1,187.87

Finding the Fourth Proportional to 4,109.74, 6,164.30 and 1,187.87

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Solution

The fourth proportional to 4,109.74, 6,164.30 and 1,187.87 is: 1,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.74 : 6,164.30 = 1,187.87 : x
  2. Step 2: Convert to fraction form
    4,109.74/6,164.30 = 1,187.87/x
  3. Step 3: Cross multiply
    4,109.74x = 6,164.30 × 1,187.87
  4. Step 4: Simplify right side
    4,109.74x = 7,322,359.19
  5. Step 5: Solve for x
    x = 7,322,359.19/4,109.74
  6. Step 6: Final answer
    x = 1,781.71

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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.