Home / 1,983.40-2,974.66-1,294.90

Finding the Fourth Proportional to 1,983.40, 2,974.66 and 1,294.90

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Solution

The fourth proportional to 1,983.40, 2,974.66 and 1,294.90 is: 1,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.40 : 2,974.66 = 1,294.90 : x
  2. Step 2: Convert to fraction form
    1,983.40/2,974.66 = 1,294.90/x
  3. Step 3: Cross multiply
    1,983.40x = 2,974.66 × 1,294.90
  4. Step 4: Simplify right side
    1,983.40x = 3,851,887.23
  5. Step 5: Solve for x
    x = 3,851,887.23/1,983.40
  6. Step 6: Final answer
    x = 1,942.06

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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.