Home / 1,938.23-2,673.11-1,308.59

Finding the Fourth Proportional to 1,938.23, 2,673.11 and 1,308.59

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Solution

The fourth proportional to 1,938.23, 2,673.11 and 1,308.59 is: 1,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.23 : 2,673.11 = 1,308.59 : x
  2. Step 2: Convert to fraction form
    1,938.23/2,673.11 = 1,308.59/x
  3. Step 3: Cross multiply
    1,938.23x = 2,673.11 × 1,308.59
  4. Step 4: Simplify right side
    1,938.23x = 3,497,998.47
  5. Step 5: Solve for x
    x = 3,497,998.47/1,938.23
  6. Step 6: Final answer
    x = 1,804.74

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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.