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Finding the Fourth Proportional to 3,018.92, 4,528.80 and 1,375.88

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Solution

The fourth proportional to 3,018.92, 4,528.80 and 1,375.88 is: 2,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.92 : 4,528.80 = 1,375.88 : x
  2. Step 2: Convert to fraction form
    3,018.92/4,528.80 = 1,375.88/x
  3. Step 3: Cross multiply
    3,018.92x = 4,528.80 × 1,375.88
  4. Step 4: Simplify right side
    3,018.92x = 6,231,085.34
  5. Step 5: Solve for x
    x = 6,231,085.34/3,018.92
  6. Step 6: Final answer
    x = 2,064.01

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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.