Home / 2,129.08-3,191.46-1,348.84

Finding the Fourth Proportional to 2,129.08, 3,191.46 and 1,348.84

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Solution

The fourth proportional to 2,129.08, 3,191.46 and 1,348.84 is: 2,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.08 : 3,191.46 = 1,348.84 : x
  2. Step 2: Convert to fraction form
    2,129.08/3,191.46 = 1,348.84/x
  3. Step 3: Cross multiply
    2,129.08x = 3,191.46 × 1,348.84
  4. Step 4: Simplify right side
    2,129.08x = 4,304,768.91
  5. Step 5: Solve for x
    x = 4,304,768.91/2,129.08
  6. Step 6: Final answer
    x = 2,021.89

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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.