Home / 2,690.14-3,713.67-1,806.58

Finding the Fourth Proportional to 2,690.14, 3,713.67 and 1,806.58

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Solution

The fourth proportional to 2,690.14, 3,713.67 and 1,806.58 is: 2,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.14 : 3,713.67 = 1,806.58 : x
  2. Step 2: Convert to fraction form
    2,690.14/3,713.67 = 1,806.58/x
  3. Step 3: Cross multiply
    2,690.14x = 3,713.67 × 1,806.58
  4. Step 4: Simplify right side
    2,690.14x = 6,709,041.95
  5. Step 5: Solve for x
    x = 6,709,041.95/2,690.14
  6. Step 6: Final answer
    x = 2,493.94

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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.