Home / 2,106.39-2,908.05-1,267.35

Finding the Fourth Proportional to 2,106.39, 2,908.05 and 1,267.35

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Solution

The fourth proportional to 2,106.39, 2,908.05 and 1,267.35 is: 1,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.39 : 2,908.05 = 1,267.35 : x
  2. Step 2: Convert to fraction form
    2,106.39/2,908.05 = 1,267.35/x
  3. Step 3: Cross multiply
    2,106.39x = 2,908.05 × 1,267.35
  4. Step 4: Simplify right side
    2,106.39x = 3,685,517.17
  5. Step 5: Solve for x
    x = 3,685,517.17/2,106.39
  6. Step 6: Final answer
    x = 1,749.68

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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.