Home / 7,820.84-11,728.82-2,625.52

Finding the Fourth Proportional to 7,820.84, 11,728.82 and 2,625.52

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Solution

The fourth proportional to 7,820.84, 11,728.82 and 2,625.52 is: 3,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.84 : 11,728.82 = 2,625.52 : x
  2. Step 2: Convert to fraction form
    7,820.84/11,728.82 = 2,625.52/x
  3. Step 3: Cross multiply
    7,820.84x = 11,728.82 × 2,625.52
  4. Step 4: Simplify right side
    7,820.84x = 30,794,251.49
  5. Step 5: Solve for x
    x = 30,794,251.49/7,820.84
  6. Step 6: Final answer
    x = 3,937.46

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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.