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Finding the Fourth Proportional to 3,168.01, 4,752.28 and 828.01

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Solution

The fourth proportional to 3,168.01, 4,752.28 and 828.01 is: 1,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.01 : 4,752.28 = 828.01 : x
  2. Step 2: Convert to fraction form
    3,168.01/4,752.28 = 828.01/x
  3. Step 3: Cross multiply
    3,168.01x = 4,752.28 × 828.01
  4. Step 4: Simplify right side
    3,168.01x = 3,934,921.41
  5. Step 5: Solve for x
    x = 3,934,921.41/3,168.01
  6. Step 6: Final answer
    x = 1,242.08

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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.