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Finding the Fourth Proportional to 3,848.07, 5,310.30 and 2,355.78

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Solution

The fourth proportional to 3,848.07, 5,310.30 and 2,355.78 is: 3,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.07 : 5,310.30 = 2,355.78 : x
  2. Step 2: Convert to fraction form
    3,848.07/5,310.30 = 2,355.78/x
  3. Step 3: Cross multiply
    3,848.07x = 5,310.30 × 2,355.78
  4. Step 4: Simplify right side
    3,848.07x = 12,509,898.53
  5. Step 5: Solve for x
    x = 12,509,898.53/3,848.07
  6. Step 6: Final answer
    x = 3,250.95

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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.