Home / 2,958.47-4,083.40-1,779.31

Finding the Fourth Proportional to 2,958.47, 4,083.40 and 1,779.31

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Solution

The fourth proportional to 2,958.47, 4,083.40 and 1,779.31 is: 2,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.47 : 4,083.40 = 1,779.31 : x
  2. Step 2: Convert to fraction form
    2,958.47/4,083.40 = 1,779.31/x
  3. Step 3: Cross multiply
    2,958.47x = 4,083.40 × 1,779.31
  4. Step 4: Simplify right side
    2,958.47x = 7,265,644.66
  5. Step 5: Solve for x
    x = 7,265,644.66/2,958.47
  6. Step 6: Final answer
    x = 2,455.88

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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.