Home / 2,138.34-3,212.65-2,020.33

Finding the Fourth Proportional to 2,138.34, 3,212.65 and 2,020.33

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Solution

The fourth proportional to 2,138.34, 3,212.65 and 2,020.33 is: 3,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.34 : 3,212.65 = 2,020.33 : x
  2. Step 2: Convert to fraction form
    2,138.34/3,212.65 = 2,020.33/x
  3. Step 3: Cross multiply
    2,138.34x = 3,212.65 × 2,020.33
  4. Step 4: Simplify right side
    2,138.34x = 6,490,600.09
  5. Step 5: Solve for x
    x = 6,490,600.09/2,138.34
  6. Step 6: Final answer
    x = 3,035.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.