Home / 3,615.10-5,423.56-2,135.54

Finding the Fourth Proportional to 3,615.10, 5,423.56 and 2,135.54

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Solution

The fourth proportional to 3,615.10, 5,423.56 and 2,135.54 is: 3,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.10 : 5,423.56 = 2,135.54 : x
  2. Step 2: Convert to fraction form
    3,615.10/5,423.56 = 2,135.54/x
  3. Step 3: Cross multiply
    3,615.10x = 5,423.56 × 2,135.54
  4. Step 4: Simplify right side
    3,615.10x = 11,582,237.54
  5. Step 5: Solve for x
    x = 11,582,237.54/3,615.10
  6. Step 6: Final answer
    x = 3,203.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.