Home / 3,688.62-5,533.86-1,091.58

Finding the Fourth Proportional to 3,688.62, 5,533.86 and 1,091.58

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Solution

The fourth proportional to 3,688.62, 5,533.86 and 1,091.58 is: 1,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.62 : 5,533.86 = 1,091.58 : x
  2. Step 2: Convert to fraction form
    3,688.62/5,533.86 = 1,091.58/x
  3. Step 3: Cross multiply
    3,688.62x = 5,533.86 × 1,091.58
  4. Step 4: Simplify right side
    3,688.62x = 6,040,650.90
  5. Step 5: Solve for x
    x = 6,040,650.90/3,688.62
  6. Step 6: Final answer
    x = 1,637.65

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1.5x scale

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.