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Finding the Fourth Proportional to 7,314.82, 10,099.40 and 4,801.21

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Solution

The fourth proportional to 7,314.82, 10,099.40 and 4,801.21 is: 6,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,314.82 : 10,099.40 = 4,801.21 : x
  2. Step 2: Convert to fraction form
    7,314.82/10,099.40 = 4,801.21/x
  3. Step 3: Cross multiply
    7,314.82x = 10,099.40 × 4,801.21
  4. Step 4: Simplify right side
    7,314.82x = 48,489,306.85
  5. Step 5: Solve for x
    x = 48,489,306.85/7,314.82
  6. Step 6: Final answer
    x = 6,628.91

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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.