Home / 6,619.76-9,136.02-3,635.85

Finding the Fourth Proportional to 6,619.76, 9,136.02 and 3,635.85

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Solution

The fourth proportional to 6,619.76, 9,136.02 and 3,635.85 is: 5,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.76 : 9,136.02 = 3,635.85 : x
  2. Step 2: Convert to fraction form
    6,619.76/9,136.02 = 3,635.85/x
  3. Step 3: Cross multiply
    6,619.76x = 9,136.02 × 3,635.85
  4. Step 4: Simplify right side
    6,619.76x = 33,217,198.32
  5. Step 5: Solve for x
    x = 33,217,198.32/6,619.76
  6. Step 6: Final answer
    x = 5,017.89

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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.