Home / 4,287.72-6,433.02-1,821.48

Finding the Fourth Proportional to 4,287.72, 6,433.02 and 1,821.48

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Solution

The fourth proportional to 4,287.72, 6,433.02 and 1,821.48 is: 2,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.72 : 6,433.02 = 1,821.48 : x
  2. Step 2: Convert to fraction form
    4,287.72/6,433.02 = 1,821.48/x
  3. Step 3: Cross multiply
    4,287.72x = 6,433.02 × 1,821.48
  4. Step 4: Simplify right side
    4,287.72x = 11,717,617.27
  5. Step 5: Solve for x
    x = 11,717,617.27/4,287.72
  6. Step 6: Final answer
    x = 2,732.83

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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.