Home / 3,880.37-5,353.18-2,621.02

Finding the Fourth Proportional to 3,880.37, 5,353.18 and 2,621.02

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Solution

The fourth proportional to 3,880.37, 5,353.18 and 2,621.02 is: 3,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.37 : 5,353.18 = 2,621.02 : x
  2. Step 2: Convert to fraction form
    3,880.37/5,353.18 = 2,621.02/x
  3. Step 3: Cross multiply
    3,880.37x = 5,353.18 × 2,621.02
  4. Step 4: Simplify right side
    3,880.37x = 14,030,791.84
  5. Step 5: Solve for x
    x = 14,030,791.84/3,880.37
  6. Step 6: Final answer
    x = 3,615.84

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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.