Home / 3,808.55-5,255.87-2,316.53

Finding the Fourth Proportional to 3,808.55, 5,255.87 and 2,316.53

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Solution

The fourth proportional to 3,808.55, 5,255.87 and 2,316.53 is: 3,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.55 : 5,255.87 = 2,316.53 : x
  2. Step 2: Convert to fraction form
    3,808.55/5,255.87 = 2,316.53/x
  3. Step 3: Cross multiply
    3,808.55x = 5,255.87 × 2,316.53
  4. Step 4: Simplify right side
    3,808.55x = 12,175,382.09
  5. Step 5: Solve for x
    x = 12,175,382.09/3,808.55
  6. Step 6: Final answer
    x = 3,196.85

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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.