Home / 1,974.03-2,725.15-1,228.23

Finding the Fourth Proportional to 1,974.03, 2,725.15 and 1,228.23

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Solution

The fourth proportional to 1,974.03, 2,725.15 and 1,228.23 is: 1,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.03 : 2,725.15 = 1,228.23 : x
  2. Step 2: Convert to fraction form
    1,974.03/2,725.15 = 1,228.23/x
  3. Step 3: Cross multiply
    1,974.03x = 2,725.15 × 1,228.23
  4. Step 4: Simplify right side
    1,974.03x = 3,347,110.98
  5. Step 5: Solve for x
    x = 3,347,110.98/1,974.03
  6. Step 6: Final answer
    x = 1,695.57

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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.