Home / 4,474.22-6,711.36-1,187.78

Finding the Fourth Proportional to 4,474.22, 6,711.36 and 1,187.78

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Solution

The fourth proportional to 4,474.22, 6,711.36 and 1,187.78 is: 1,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,474.22 : 6,711.36 = 1,187.78 : x
  2. Step 2: Convert to fraction form
    4,474.22/6,711.36 = 1,187.78/x
  3. Step 3: Cross multiply
    4,474.22x = 6,711.36 × 1,187.78
  4. Step 4: Simplify right side
    4,474.22x = 7,971,619.18
  5. Step 5: Solve for x
    x = 7,971,619.18/4,474.22
  6. Step 6: Final answer
    x = 1,781.68

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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.