Home / 3,785.58-5,680.26-3,511.80

Finding the Fourth Proportional to 3,785.58, 5,680.26 and 3,511.80

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Solution

The fourth proportional to 3,785.58, 5,680.26 and 3,511.80 is: 5,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.58 : 5,680.26 = 3,511.80 : x
  2. Step 2: Convert to fraction form
    3,785.58/5,680.26 = 3,511.80/x
  3. Step 3: Cross multiply
    3,785.58x = 5,680.26 × 3,511.80
  4. Step 4: Simplify right side
    3,785.58x = 19,947,937.07
  5. Step 5: Solve for x
    x = 19,947,937.07/3,785.58
  6. Step 6: Final answer
    x = 5,269.45

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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.