Home / 2,728.70-4,089.62-1,166.86

Finding the Fourth Proportional to 2,728.70, 4,089.62 and 1,166.86

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Solution

The fourth proportional to 2,728.70, 4,089.62 and 1,166.86 is: 1,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.70 : 4,089.62 = 1,166.86 : x
  2. Step 2: Convert to fraction form
    2,728.70/4,089.62 = 1,166.86/x
  3. Step 3: Cross multiply
    2,728.70x = 4,089.62 × 1,166.86
  4. Step 4: Simplify right side
    2,728.70x = 4,772,030.51
  5. Step 5: Solve for x
    x = 4,772,030.51/2,728.70
  6. Step 6: Final answer
    x = 1,748.83

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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.