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Finding the Fourth Proportional to 5,308.60, 7,963.80 and 1,610.80

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Solution

The fourth proportional to 5,308.60, 7,963.80 and 1,610.80 is: 2,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.60 : 7,963.80 = 1,610.80 : x
  2. Step 2: Convert to fraction form
    5,308.60/7,963.80 = 1,610.80/x
  3. Step 3: Cross multiply
    5,308.60x = 7,963.80 × 1,610.80
  4. Step 4: Simplify right side
    5,308.60x = 12,828,089.04
  5. Step 5: Solve for x
    x = 12,828,089.04/5,308.60
  6. Step 6: Final answer
    x = 2,416.47

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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.