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Finding the Fourth Proportional to 3,063.30, 4,595 and 872.08

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Solution

The fourth proportional to 3,063.30, 4,595 and 872.08 is: 1,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,063.30 : 4,595 = 872.08 : x
  2. Step 2: Convert to fraction form
    3,063.30/4,595 = 872.08/x
  3. Step 3: Cross multiply
    3,063.30x = 4,595 × 872.08
  4. Step 4: Simplify right side
    3,063.30x = 4,007,207.60
  5. Step 5: Solve for x
    x = 4,007,207.60/3,063.30
  6. Step 6: Final answer
    x = 1,308.13

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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.