Home / 1,364.05-2,046.08-439.61

Finding the Fourth Proportional to 1,364.05, 2,046.08 and 439.61

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Solution

The fourth proportional to 1,364.05, 2,046.08 and 439.61 is: 659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.05 : 2,046.08 = 439.61 : x
  2. Step 2: Convert to fraction form
    1,364.05/2,046.08 = 439.61/x
  3. Step 3: Cross multiply
    1,364.05x = 2,046.08 × 439.61
  4. Step 4: Simplify right side
    1,364.05x = 899,477.23
  5. Step 5: Solve for x
    x = 899,477.23/1,364.05
  6. Step 6: Final answer
    x = 659.42

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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.