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Finding the Fourth Proportional to 1,957.76, 2,936.74 and 496.92

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Solution

The fourth proportional to 1,957.76, 2,936.74 and 496.92 is: 745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.76 : 2,936.74 = 496.92 : x
  2. Step 2: Convert to fraction form
    1,957.76/2,936.74 = 496.92/x
  3. Step 3: Cross multiply
    1,957.76x = 2,936.74 × 496.92
  4. Step 4: Simplify right side
    1,957.76x = 1,459,322.67
  5. Step 5: Solve for x
    x = 1,459,322.67/1,957.76
  6. Step 6: Final answer
    x = 745.41

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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.