Home / 3,941.78-5,440.08-2,615

Finding the Fourth Proportional to 3,941.78, 5,440.08 and 2,615

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Solution

The fourth proportional to 3,941.78, 5,440.08 and 2,615 is: 3,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.78 : 5,440.08 = 2,615 : x
  2. Step 2: Convert to fraction form
    3,941.78/5,440.08 = 2,615/x
  3. Step 3: Cross multiply
    3,941.78x = 5,440.08 × 2,615
  4. Step 4: Simplify right side
    3,941.78x = 14,225,809.20
  5. Step 5: Solve for x
    x = 14,225,809.20/3,941.78
  6. Step 6: Final answer
    x = 3,608.98

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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.