Home / 1,984.54-2,974.98-1,820.52

Finding the Fourth Proportional to 1,984.54, 2,974.98 and 1,820.52

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Solution

The fourth proportional to 1,984.54, 2,974.98 and 1,820.52 is: 2,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.54 : 2,974.98 = 1,820.52 : x
  2. Step 2: Convert to fraction form
    1,984.54/2,974.98 = 1,820.52/x
  3. Step 3: Cross multiply
    1,984.54x = 2,974.98 × 1,820.52
  4. Step 4: Simplify right side
    1,984.54x = 5,416,010.59
  5. Step 5: Solve for x
    x = 5,416,010.59/1,984.54
  6. Step 6: Final answer
    x = 2,729.10

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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.