Home / 2,869.09-3,958-1,806.37

Finding the Fourth Proportional to 2,869.09, 3,958 and 1,806.37

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Solution

The fourth proportional to 2,869.09, 3,958 and 1,806.37 is: 2,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.09 : 3,958 = 1,806.37 : x
  2. Step 2: Convert to fraction form
    2,869.09/3,958 = 1,806.37/x
  3. Step 3: Cross multiply
    2,869.09x = 3,958 × 1,806.37
  4. Step 4: Simplify right side
    2,869.09x = 7,149,612.46
  5. Step 5: Solve for x
    x = 7,149,612.46/2,869.09
  6. Step 6: Final answer
    x = 2,491.94

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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.