Home / 2,120.60-2,926.54-1,236.35

Finding the Fourth Proportional to 2,120.60, 2,926.54 and 1,236.35

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Solution

The fourth proportional to 2,120.60, 2,926.54 and 1,236.35 is: 1,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.60 : 2,926.54 = 1,236.35 : x
  2. Step 2: Convert to fraction form
    2,120.60/2,926.54 = 1,236.35/x
  3. Step 3: Cross multiply
    2,120.60x = 2,926.54 × 1,236.35
  4. Step 4: Simplify right side
    2,120.60x = 3,618,227.73
  5. Step 5: Solve for x
    x = 3,618,227.73/2,120.60
  6. Step 6: Final answer
    x = 1,706.23

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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.