Home / 3,880.67-5,349.08-2,621.33

Finding the Fourth Proportional to 3,880.67, 5,349.08 and 2,621.33

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Solution

The fourth proportional to 3,880.67, 5,349.08 and 2,621.33 is: 3,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.67 : 5,349.08 = 2,621.33 : x
  2. Step 2: Convert to fraction form
    3,880.67/5,349.08 = 2,621.33/x
  3. Step 3: Cross multiply
    3,880.67x = 5,349.08 × 2,621.33
  4. Step 4: Simplify right side
    3,880.67x = 14,021,664.02
  5. Step 5: Solve for x
    x = 14,021,664.02/3,880.67
  6. Step 6: Final answer
    x = 3,613.21

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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.