Home / 3,039.50-4,194.28-1,780.47

Finding the Fourth Proportional to 3,039.50, 4,194.28 and 1,780.47

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Solution

The fourth proportional to 3,039.50, 4,194.28 and 1,780.47 is: 2,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.50 : 4,194.28 = 1,780.47 : x
  2. Step 2: Convert to fraction form
    3,039.50/4,194.28 = 1,780.47/x
  3. Step 3: Cross multiply
    3,039.50x = 4,194.28 × 1,780.47
  4. Step 4: Simplify right side
    3,039.50x = 7,467,780.81
  5. Step 5: Solve for x
    x = 7,467,780.81/3,039.50
  6. Step 6: Final answer
    x = 2,456.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.