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Finding the Fourth Proportional to 5,076.65, 7,612.25 and 1,789.47

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Solution

The fourth proportional to 5,076.65, 7,612.25 and 1,789.47 is: 2,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.65 : 7,612.25 = 1,789.47 : x
  2. Step 2: Convert to fraction form
    5,076.65/7,612.25 = 1,789.47/x
  3. Step 3: Cross multiply
    5,076.65x = 7,612.25 × 1,789.47
  4. Step 4: Simplify right side
    5,076.65x = 13,621,884.06
  5. Step 5: Solve for x
    x = 13,621,884.06/5,076.65
  6. Step 6: Final answer
    x = 2,683.24

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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.