Home / 3,191.57-4,787.36-1,739.95

Finding the Fourth Proportional to 3,191.57, 4,787.36 and 1,739.95

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Solution

The fourth proportional to 3,191.57, 4,787.36 and 1,739.95 is: 2,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.57 : 4,787.36 = 1,739.95 : x
  2. Step 2: Convert to fraction form
    3,191.57/4,787.36 = 1,739.95/x
  3. Step 3: Cross multiply
    3,191.57x = 4,787.36 × 1,739.95
  4. Step 4: Simplify right side
    3,191.57x = 8,329,746.36
  5. Step 5: Solve for x
    x = 8,329,746.36/3,191.57
  6. Step 6: Final answer
    x = 2,609.92

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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.