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Finding the Fourth Proportional to 2,739.50, 3,780.54 and 1,497.50

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Solution

The fourth proportional to 2,739.50, 3,780.54 and 1,497.50 is: 2,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.50 : 3,780.54 = 1,497.50 : x
  2. Step 2: Convert to fraction form
    2,739.50/3,780.54 = 1,497.50/x
  3. Step 3: Cross multiply
    2,739.50x = 3,780.54 × 1,497.50
  4. Step 4: Simplify right side
    2,739.50x = 5,661,358.65
  5. Step 5: Solve for x
    x = 5,661,358.65/2,739.50
  6. Step 6: Final answer
    x = 2,066.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.