Home / 2,118.07-2,922.66-1,267.33

Finding the Fourth Proportional to 2,118.07, 2,922.66 and 1,267.33

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Solution

The fourth proportional to 2,118.07, 2,922.66 and 1,267.33 is: 1,748.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.07 : 2,922.66 = 1,267.33 : x
  2. Step 2: Convert to fraction form
    2,118.07/2,922.66 = 1,267.33/x
  3. Step 3: Cross multiply
    2,118.07x = 2,922.66 × 1,267.33
  4. Step 4: Simplify right side
    2,118.07x = 3,703,974.70
  5. Step 5: Solve for x
    x = 3,703,974.70/2,118.07
  6. Step 6: Final answer
    x = 1,748.75

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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.