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Finding the Fourth Proportional to 2,363.60, 3,544.31 and 719.80

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Solution

The fourth proportional to 2,363.60, 3,544.31 and 719.80 is: 1,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.60 : 3,544.31 = 719.80 : x
  2. Step 2: Convert to fraction form
    2,363.60/3,544.31 = 719.80/x
  3. Step 3: Cross multiply
    2,363.60x = 3,544.31 × 719.80
  4. Step 4: Simplify right side
    2,363.60x = 2,551,203.16
  5. Step 5: Solve for x
    x = 2,551,203.16/2,363.60
  6. Step 6: Final answer
    x = 1,079.37

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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.