Home / 1,336.21-2,005.04-556.75

Finding the Fourth Proportional to 1,336.21, 2,005.04 and 556.75

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Solution

The fourth proportional to 1,336.21, 2,005.04 and 556.75 is: 835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.21 : 2,005.04 = 556.75 : x
  2. Step 2: Convert to fraction form
    1,336.21/2,005.04 = 556.75/x
  3. Step 3: Cross multiply
    1,336.21x = 2,005.04 × 556.75
  4. Step 4: Simplify right side
    1,336.21x = 1,116,306.02
  5. Step 5: Solve for x
    x = 1,116,306.02/1,336.21
  6. Step 6: Final answer
    x = 835.43

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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.