Home / 3,684.55-5,084.85-2,112.64

Finding the Fourth Proportional to 3,684.55, 5,084.85 and 2,112.64

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Solution

The fourth proportional to 3,684.55, 5,084.85 and 2,112.64 is: 2,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.55 : 5,084.85 = 2,112.64 : x
  2. Step 2: Convert to fraction form
    3,684.55/5,084.85 = 2,112.64/x
  3. Step 3: Cross multiply
    3,684.55x = 5,084.85 × 2,112.64
  4. Step 4: Simplify right side
    3,684.55x = 10,742,457.50
  5. Step 5: Solve for x
    x = 10,742,457.50/3,684.55
  6. Step 6: Final answer
    x = 2,915.54

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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.