Home / 4,069.32-5,613.60-2,811.60

Finding the Fourth Proportional to 4,069.32, 5,613.60 and 2,811.60

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Solution

The fourth proportional to 4,069.32, 5,613.60 and 2,811.60 is: 3,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.32 : 5,613.60 = 2,811.60 : x
  2. Step 2: Convert to fraction form
    4,069.32/5,613.60 = 2,811.60/x
  3. Step 3: Cross multiply
    4,069.32x = 5,613.60 × 2,811.60
  4. Step 4: Simplify right side
    4,069.32x = 15,783,197.76
  5. Step 5: Solve for x
    x = 15,783,197.76/4,069.32
  6. Step 6: Final answer
    x = 3,878.58

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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.