Home / 2,989.93-4,470.66-2,728.52

Finding the Fourth Proportional to 2,989.93, 4,470.66 and 2,728.52

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Solution

The fourth proportional to 2,989.93, 4,470.66 and 2,728.52 is: 4,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.93 : 4,470.66 = 2,728.52 : x
  2. Step 2: Convert to fraction form
    2,989.93/4,470.66 = 2,728.52/x
  3. Step 3: Cross multiply
    2,989.93x = 4,470.66 × 2,728.52
  4. Step 4: Simplify right side
    2,989.93x = 12,198,252.64
  5. Step 5: Solve for x
    x = 12,198,252.64/2,989.93
  6. Step 6: Final answer
    x = 4,079.77

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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.