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Finding the Fourth Proportional to 3,324.78, 4,987.98 and 1,476.50

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Solution

The fourth proportional to 3,324.78, 4,987.98 and 1,476.50 is: 2,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.78 : 4,987.98 = 1,476.50 : x
  2. Step 2: Convert to fraction form
    3,324.78/4,987.98 = 1,476.50/x
  3. Step 3: Cross multiply
    3,324.78x = 4,987.98 × 1,476.50
  4. Step 4: Simplify right side
    3,324.78x = 7,364,727.53
  5. Step 5: Solve for x
    x = 7,364,727.53/3,324.78
  6. Step 6: Final answer
    x = 2,215.10

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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.