Home / 5,144.88-7,717.51-2,645.40

Finding the Fourth Proportional to 5,144.88, 7,717.51 and 2,645.40

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Solution

The fourth proportional to 5,144.88, 7,717.51 and 2,645.40 is: 3,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.88 : 7,717.51 = 2,645.40 : x
  2. Step 2: Convert to fraction form
    5,144.88/7,717.51 = 2,645.40/x
  3. Step 3: Cross multiply
    5,144.88x = 7,717.51 × 2,645.40
  4. Step 4: Simplify right side
    5,144.88x = 20,415,900.95
  5. Step 5: Solve for x
    x = 20,415,900.95/5,144.88
  6. Step 6: Final answer
    x = 3,968.20

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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.