Home / 1,988.28-2,967.39-1,936.44

Finding the Fourth Proportional to 1,988.28, 2,967.39 and 1,936.44

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Solution

The fourth proportional to 1,988.28, 2,967.39 and 1,936.44 is: 2,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.28 : 2,967.39 = 1,936.44 : x
  2. Step 2: Convert to fraction form
    1,988.28/2,967.39 = 1,936.44/x
  3. Step 3: Cross multiply
    1,988.28x = 2,967.39 × 1,936.44
  4. Step 4: Simplify right side
    1,988.28x = 5,746,172.69
  5. Step 5: Solve for x
    x = 5,746,172.69/1,988.28
  6. Step 6: Final answer
    x = 2,890.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.