Home / 2,728.02-4,092.26-972.35

Finding the Fourth Proportional to 2,728.02, 4,092.26 and 972.35

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Solution

The fourth proportional to 2,728.02, 4,092.26 and 972.35 is: 1,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.02 : 4,092.26 = 972.35 : x
  2. Step 2: Convert to fraction form
    2,728.02/4,092.26 = 972.35/x
  3. Step 3: Cross multiply
    2,728.02x = 4,092.26 × 972.35
  4. Step 4: Simplify right side
    2,728.02x = 3,979,109.01
  5. Step 5: Solve for x
    x = 3,979,109.01/2,728.02
  6. Step 6: Final answer
    x = 1,458.61

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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.