Home / 1,972.54-2,962.05-1,324.54

Finding the Fourth Proportional to 1,972.54, 2,962.05 and 1,324.54

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Solution

The fourth proportional to 1,972.54, 2,962.05 and 1,324.54 is: 1,988.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.54 : 2,962.05 = 1,324.54 : x
  2. Step 2: Convert to fraction form
    1,972.54/2,962.05 = 1,324.54/x
  3. Step 3: Cross multiply
    1,972.54x = 2,962.05 × 1,324.54
  4. Step 4: Simplify right side
    1,972.54x = 3,923,353.71
  5. Step 5: Solve for x
    x = 3,923,353.71/1,972.54
  6. Step 6: Final answer
    x = 1,988.99

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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.