Home / 3,272.41-4,515.94-1,780.35

Finding the Fourth Proportional to 3,272.41, 4,515.94 and 1,780.35

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Solution

The fourth proportional to 3,272.41, 4,515.94 and 1,780.35 is: 2,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.41 : 4,515.94 = 1,780.35 : x
  2. Step 2: Convert to fraction form
    3,272.41/4,515.94 = 1,780.35/x
  3. Step 3: Cross multiply
    3,272.41x = 4,515.94 × 1,780.35
  4. Step 4: Simplify right side
    3,272.41x = 8,039,953.78
  5. Step 5: Solve for x
    x = 8,039,953.78/3,272.41
  6. Step 6: Final answer
    x = 2,456.89

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1.5x scale

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.