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Finding the Fourth Proportional to 7,622.78, 10,519.10 and 4,264.95

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Solution

The fourth proportional to 7,622.78, 10,519.10 and 4,264.95 is: 5,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.78 : 10,519.10 = 4,264.95 : x
  2. Step 2: Convert to fraction form
    7,622.78/10,519.10 = 4,264.95/x
  3. Step 3: Cross multiply
    7,622.78x = 10,519.10 × 4,264.95
  4. Step 4: Simplify right side
    7,622.78x = 44,863,469.66
  5. Step 5: Solve for x
    x = 44,863,469.66/7,622.78
  6. Step 6: Final answer
    x = 5,885.45

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1.5x scale

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.