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Finding the Fourth Proportional to 3,018.72, 4,528.08 and 827.46

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Solution

The fourth proportional to 3,018.72, 4,528.08 and 827.46 is: 1,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.72 : 4,528.08 = 827.46 : x
  2. Step 2: Convert to fraction form
    3,018.72/4,528.08 = 827.46/x
  3. Step 3: Cross multiply
    3,018.72x = 4,528.08 × 827.46
  4. Step 4: Simplify right side
    3,018.72x = 3,746,805.08
  5. Step 5: Solve for x
    x = 3,746,805.08/3,018.72
  6. Step 6: Final answer
    x = 1,241.19

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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.