Home / 3,188.59-4,781.53-1,239.46

Finding the Fourth Proportional to 3,188.59, 4,781.53 and 1,239.46

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Solution

The fourth proportional to 3,188.59, 4,781.53 and 1,239.46 is: 1,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.59 : 4,781.53 = 1,239.46 : x
  2. Step 2: Convert to fraction form
    3,188.59/4,781.53 = 1,239.46/x
  3. Step 3: Cross multiply
    3,188.59x = 4,781.53 × 1,239.46
  4. Step 4: Simplify right side
    3,188.59x = 5,926,515.17
  5. Step 5: Solve for x
    x = 5,926,515.17/3,188.59
  6. Step 6: Final answer
    x = 1,858.66

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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.