Home / 1,982.88-2,971.08-1,907.04

Finding the Fourth Proportional to 1,982.88, 2,971.08 and 1,907.04

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Solution

The fourth proportional to 1,982.88, 2,971.08 and 1,907.04 is: 2,857.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.88 : 2,971.08 = 1,907.04 : x
  2. Step 2: Convert to fraction form
    1,982.88/2,971.08 = 1,907.04/x
  3. Step 3: Cross multiply
    1,982.88x = 2,971.08 × 1,907.04
  4. Step 4: Simplify right side
    1,982.88x = 5,665,968.40
  5. Step 5: Solve for x
    x = 5,665,968.40/1,982.88
  6. Step 6: Final answer
    x = 2,857.44

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1.5x scale

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.