Home / 2,190.17-3,277.01-1,309.43

Finding the Fourth Proportional to 2,190.17, 3,277.01 and 1,309.43

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Solution

The fourth proportional to 2,190.17, 3,277.01 and 1,309.43 is: 1,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.17 : 3,277.01 = 1,309.43 : x
  2. Step 2: Convert to fraction form
    2,190.17/3,277.01 = 1,309.43/x
  3. Step 3: Cross multiply
    2,190.17x = 3,277.01 × 1,309.43
  4. Step 4: Simplify right side
    2,190.17x = 4,291,002.09
  5. Step 5: Solve for x
    x = 4,291,002.09/2,190.17
  6. Step 6: Final answer
    x = 1,959.21

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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.