Home / 4,164.21-6,245.06-1,390.19

Finding the Fourth Proportional to 4,164.21, 6,245.06 and 1,390.19

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Solution

The fourth proportional to 4,164.21, 6,245.06 and 1,390.19 is: 2,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164.21 : 6,245.06 = 1,390.19 : x
  2. Step 2: Convert to fraction form
    4,164.21/6,245.06 = 1,390.19/x
  3. Step 3: Cross multiply
    4,164.21x = 6,245.06 × 1,390.19
  4. Step 4: Simplify right side
    4,164.21x = 8,681,781.79
  5. Step 5: Solve for x
    x = 8,681,781.79/4,164.21
  6. Step 6: Final answer
    x = 2,084.86

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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.