Home / 2,717.40-4,068.34-1,790.12

Finding the Fourth Proportional to 2,717.40, 4,068.34 and 1,790.12

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Solution

The fourth proportional to 2,717.40, 4,068.34 and 1,790.12 is: 2,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.40 : 4,068.34 = 1,790.12 : x
  2. Step 2: Convert to fraction form
    2,717.40/4,068.34 = 1,790.12/x
  3. Step 3: Cross multiply
    2,717.40x = 4,068.34 × 1,790.12
  4. Step 4: Simplify right side
    2,717.40x = 7,282,791.98
  5. Step 5: Solve for x
    x = 7,282,791.98/2,717.40
  6. Step 6: Final answer
    x = 2,680.06

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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.