Home / 2,109.97-2,911.05-1,364.87

Finding the Fourth Proportional to 2,109.97, 2,911.05 and 1,364.87

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Solution

The fourth proportional to 2,109.97, 2,911.05 and 1,364.87 is: 1,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.97 : 2,911.05 = 1,364.87 : x
  2. Step 2: Convert to fraction form
    2,109.97/2,911.05 = 1,364.87/x
  3. Step 3: Cross multiply
    2,109.97x = 2,911.05 × 1,364.87
  4. Step 4: Simplify right side
    2,109.97x = 3,973,212.09
  5. Step 5: Solve for x
    x = 3,973,212.09/2,109.97
  6. Step 6: Final answer
    x = 1,883.06

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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.