Home / 1,982.74-2,737.26-1,354.20

Finding the Fourth Proportional to 1,982.74, 2,737.26 and 1,354.20

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Solution

The fourth proportional to 1,982.74, 2,737.26 and 1,354.20 is: 1,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.74 : 2,737.26 = 1,354.20 : x
  2. Step 2: Convert to fraction form
    1,982.74/2,737.26 = 1,354.20/x
  3. Step 3: Cross multiply
    1,982.74x = 2,737.26 × 1,354.20
  4. Step 4: Simplify right side
    1,982.74x = 3,706,797.49
  5. Step 5: Solve for x
    x = 3,706,797.49/1,982.74
  6. Step 6: Final answer
    x = 1,869.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.