Home / 2,354.61-3,529.65-1,121.37

Finding the Fourth Proportional to 2,354.61, 3,529.65 and 1,121.37

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Solution

The fourth proportional to 2,354.61, 3,529.65 and 1,121.37 is: 1,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.61 : 3,529.65 = 1,121.37 : x
  2. Step 2: Convert to fraction form
    2,354.61/3,529.65 = 1,121.37/x
  3. Step 3: Cross multiply
    2,354.61x = 3,529.65 × 1,121.37
  4. Step 4: Simplify right side
    2,354.61x = 3,958,043.62
  5. Step 5: Solve for x
    x = 3,958,043.62/2,354.61
  6. Step 6: Final answer
    x = 1,680.98

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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.