Home / 2,190.68-3,023.46-1,307

Finding the Fourth Proportional to 2,190.68, 3,023.46 and 1,307

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Solution

The fourth proportional to 2,190.68, 3,023.46 and 1,307 is: 1,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.68 : 3,023.46 = 1,307 : x
  2. Step 2: Convert to fraction form
    2,190.68/3,023.46 = 1,307/x
  3. Step 3: Cross multiply
    2,190.68x = 3,023.46 × 1,307
  4. Step 4: Simplify right side
    2,190.68x = 3,951,662.22
  5. Step 5: Solve for x
    x = 3,951,662.22/2,190.68
  6. Step 6: Final answer
    x = 1,803.85

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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.