Home / 2,126.93-3,190.76-1,204.30

Finding the Fourth Proportional to 2,126.93, 3,190.76 and 1,204.30

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Solution

The fourth proportional to 2,126.93, 3,190.76 and 1,204.30 is: 1,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.93 : 3,190.76 = 1,204.30 : x
  2. Step 2: Convert to fraction form
    2,126.93/3,190.76 = 1,204.30/x
  3. Step 3: Cross multiply
    2,126.93x = 3,190.76 × 1,204.30
  4. Step 4: Simplify right side
    2,126.93x = 3,842,634.75
  5. Step 5: Solve for x
    x = 3,842,634.75/2,126.93
  6. Step 6: Final answer
    x = 1,806.66

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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.