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Finding the Fourth Proportional to 5,863.45, 8,799.23 and 4,221.40

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Solution

The fourth proportional to 5,863.45, 8,799.23 and 4,221.40 is: 6,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,863.45 : 8,799.23 = 4,221.40 : x
  2. Step 2: Convert to fraction form
    5,863.45/8,799.23 = 4,221.40/x
  3. Step 3: Cross multiply
    5,863.45x = 8,799.23 × 4,221.40
  4. Step 4: Simplify right side
    5,863.45x = 37,145,069.52
  5. Step 5: Solve for x
    x = 37,145,069.52/5,863.45
  6. Step 6: Final answer
    x = 6,335.02

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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.