Home / 3,556.50-5,335.32-1,091.70

Finding the Fourth Proportional to 3,556.50, 5,335.32 and 1,091.70

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Solution

The fourth proportional to 3,556.50, 5,335.32 and 1,091.70 is: 1,637.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.50 : 5,335.32 = 1,091.70 : x
  2. Step 2: Convert to fraction form
    3,556.50/5,335.32 = 1,091.70/x
  3. Step 3: Cross multiply
    3,556.50x = 5,335.32 × 1,091.70
  4. Step 4: Simplify right side
    3,556.50x = 5,824,568.84
  5. Step 5: Solve for x
    x = 5,824,568.84/3,556.50
  6. Step 6: Final answer
    x = 1,637.72

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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.