Home / 2,379.58-3,283.84-1,385.44

Finding the Fourth Proportional to 2,379.58, 3,283.84 and 1,385.44

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Solution

The fourth proportional to 2,379.58, 3,283.84 and 1,385.44 is: 1,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.58 : 3,283.84 = 1,385.44 : x
  2. Step 2: Convert to fraction form
    2,379.58/3,283.84 = 1,385.44/x
  3. Step 3: Cross multiply
    2,379.58x = 3,283.84 × 1,385.44
  4. Step 4: Simplify right side
    2,379.58x = 4,549,563.29
  5. Step 5: Solve for x
    x = 4,549,563.29/2,379.58
  6. Step 6: Final answer
    x = 1,911.92

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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.