Home / 3,178.31-4,383.72-1,851.93

Finding the Fourth Proportional to 3,178.31, 4,383.72 and 1,851.93

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Solution

The fourth proportional to 3,178.31, 4,383.72 and 1,851.93 is: 2,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.31 : 4,383.72 = 1,851.93 : x
  2. Step 2: Convert to fraction form
    3,178.31/4,383.72 = 1,851.93/x
  3. Step 3: Cross multiply
    3,178.31x = 4,383.72 × 1,851.93
  4. Step 4: Simplify right side
    3,178.31x = 8,118,342.58
  5. Step 5: Solve for x
    x = 8,118,342.58/3,178.31
  6. Step 6: Final answer
    x = 2,554.30

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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.