Home / 2,121.46-2,926.22-1,376.37

Finding the Fourth Proportional to 2,121.46, 2,926.22 and 1,376.37

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Solution

The fourth proportional to 2,121.46, 2,926.22 and 1,376.37 is: 1,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.46 : 2,926.22 = 1,376.37 : x
  2. Step 2: Convert to fraction form
    2,121.46/2,926.22 = 1,376.37/x
  3. Step 3: Cross multiply
    2,121.46x = 2,926.22 × 1,376.37
  4. Step 4: Simplify right side
    2,121.46x = 4,027,554.54
  5. Step 5: Solve for x
    x = 4,027,554.54/2,121.46
  6. Step 6: Final answer
    x = 1,898.48

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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.