Home / 5,515.92-7,622.88-4,519.60

Finding the Fourth Proportional to 5,515.92, 7,622.88 and 4,519.60

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Solution

The fourth proportional to 5,515.92, 7,622.88 and 4,519.60 is: 6,245.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.92 : 7,622.88 = 4,519.60 : x
  2. Step 2: Convert to fraction form
    5,515.92/7,622.88 = 4,519.60/x
  3. Step 3: Cross multiply
    5,515.92x = 7,622.88 × 4,519.60
  4. Step 4: Simplify right side
    5,515.92x = 34,452,368.45
  5. Step 5: Solve for x
    x = 34,452,368.45/5,515.92
  6. Step 6: Final answer
    x = 6,245.99

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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.