Home / 3,191.02-4,787.45-1,342.09

Finding the Fourth Proportional to 3,191.02, 4,787.45 and 1,342.09

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Solution

The fourth proportional to 3,191.02, 4,787.45 and 1,342.09 is: 2,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.02 : 4,787.45 = 1,342.09 : x
  2. Step 2: Convert to fraction form
    3,191.02/4,787.45 = 1,342.09/x
  3. Step 3: Cross multiply
    3,191.02x = 4,787.45 × 1,342.09
  4. Step 4: Simplify right side
    3,191.02x = 6,425,188.77
  5. Step 5: Solve for x
    x = 6,425,188.77/3,191.02
  6. Step 6: Final answer
    x = 2,013.52

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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.