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Finding the Fourth Proportional to 2,495.84, 3,739.96 and 1,259.80

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Solution

The fourth proportional to 2,495.84, 3,739.96 and 1,259.80 is: 1,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.84 : 3,739.96 = 1,259.80 : x
  2. Step 2: Convert to fraction form
    2,495.84/3,739.96 = 1,259.80/x
  3. Step 3: Cross multiply
    2,495.84x = 3,739.96 × 1,259.80
  4. Step 4: Simplify right side
    2,495.84x = 4,711,601.61
  5. Step 5: Solve for x
    x = 4,711,601.61/2,495.84
  6. Step 6: Final answer
    x = 1,887.78

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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.