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Finding the Fourth Proportional to 3,000.30, 4,500.72 and 1,357.62

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Solution

The fourth proportional to 3,000.30, 4,500.72 and 1,357.62 is: 2,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.30 : 4,500.72 = 1,357.62 : x
  2. Step 2: Convert to fraction form
    3,000.30/4,500.72 = 1,357.62/x
  3. Step 3: Cross multiply
    3,000.30x = 4,500.72 × 1,357.62
  4. Step 4: Simplify right side
    3,000.30x = 6,110,267.49
  5. Step 5: Solve for x
    x = 6,110,267.49/3,000.30
  6. Step 6: Final answer
    x = 2,036.55

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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.