Home / 2,854.31-3,938.45-1,595.31

Finding the Fourth Proportional to 2,854.31, 3,938.45 and 1,595.31

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Solution

The fourth proportional to 2,854.31, 3,938.45 and 1,595.31 is: 2,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.31 : 3,938.45 = 1,595.31 : x
  2. Step 2: Convert to fraction form
    2,854.31/3,938.45 = 1,595.31/x
  3. Step 3: Cross multiply
    2,854.31x = 3,938.45 × 1,595.31
  4. Step 4: Simplify right side
    2,854.31x = 6,283,040.69
  5. Step 5: Solve for x
    x = 6,283,040.69/2,854.31
  6. Step 6: Final answer
    x = 2,201.25

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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.