Home / 3,188.68-4,781.46-1,314.22

Finding the Fourth Proportional to 3,188.68, 4,781.46 and 1,314.22

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Solution

The fourth proportional to 3,188.68, 4,781.46 and 1,314.22 is: 1,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.68 : 4,781.46 = 1,314.22 : x
  2. Step 2: Convert to fraction form
    3,188.68/4,781.46 = 1,314.22/x
  3. Step 3: Cross multiply
    3,188.68x = 4,781.46 × 1,314.22
  4. Step 4: Simplify right side
    3,188.68x = 6,283,890.36
  5. Step 5: Solve for x
    x = 6,283,890.36/3,188.68
  6. Step 6: Final answer
    x = 1,970.69

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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.