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Finding the Fourth Proportional to 2,495.40, 3,447.02 and 1,936.50

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Solution

The fourth proportional to 2,495.40, 3,447.02 and 1,936.50 is: 2,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.40 : 3,447.02 = 1,936.50 : x
  2. Step 2: Convert to fraction form
    2,495.40/3,447.02 = 1,936.50/x
  3. Step 3: Cross multiply
    2,495.40x = 3,447.02 × 1,936.50
  4. Step 4: Simplify right side
    2,495.40x = 6,675,154.23
  5. Step 5: Solve for x
    x = 6,675,154.23/2,495.40
  6. Step 6: Final answer
    x = 2,674.98

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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.