Home / 1,806.60-2,708.26-938.28

Finding the Fourth Proportional to 1,806.60, 2,708.26 and 938.28

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Solution

The fourth proportional to 1,806.60, 2,708.26 and 938.28 is: 1,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.60 : 2,708.26 = 938.28 : x
  2. Step 2: Convert to fraction form
    1,806.60/2,708.26 = 938.28/x
  3. Step 3: Cross multiply
    1,806.60x = 2,708.26 × 938.28
  4. Step 4: Simplify right side
    1,806.60x = 2,541,106.19
  5. Step 5: Solve for x
    x = 2,541,106.19/1,806.60
  6. Step 6: Final answer
    x = 1,406.57

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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.