Home / 5,438.64-8,145.72-2,512.56

Finding the Fourth Proportional to 5,438.64, 8,145.72 and 2,512.56

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Solution

The fourth proportional to 5,438.64, 8,145.72 and 2,512.56 is: 3,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.64 : 8,145.72 = 2,512.56 : x
  2. Step 2: Convert to fraction form
    5,438.64/8,145.72 = 2,512.56/x
  3. Step 3: Cross multiply
    5,438.64x = 8,145.72 × 2,512.56
  4. Step 4: Simplify right side
    5,438.64x = 20,466,610.24
  5. Step 5: Solve for x
    x = 20,466,610.24/5,438.64
  6. Step 6: Final answer
    x = 3,763.19

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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.