Home / 4,191.80-6,288.88-3,419.12

Finding the Fourth Proportional to 4,191.80, 6,288.88 and 3,419.12

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Solution

The fourth proportional to 4,191.80, 6,288.88 and 3,419.12 is: 5,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.80 : 6,288.88 = 3,419.12 : x
  2. Step 2: Convert to fraction form
    4,191.80/6,288.88 = 3,419.12/x
  3. Step 3: Cross multiply
    4,191.80x = 6,288.88 × 3,419.12
  4. Step 4: Simplify right side
    4,191.80x = 21,502,435.39
  5. Step 5: Solve for x
    x = 21,502,435.39/4,191.80
  6. Step 6: Final answer
    x = 5,129.64

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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.