Home / 5,509.62-7,603.28-2,991.73

Finding the Fourth Proportional to 5,509.62, 7,603.28 and 2,991.73

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Solution

The fourth proportional to 5,509.62, 7,603.28 and 2,991.73 is: 4,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.62 : 7,603.28 = 2,991.73 : x
  2. Step 2: Convert to fraction form
    5,509.62/7,603.28 = 2,991.73/x
  3. Step 3: Cross multiply
    5,509.62x = 7,603.28 × 2,991.73
  4. Step 4: Simplify right side
    5,509.62x = 22,746,960.87
  5. Step 5: Solve for x
    x = 22,746,960.87/5,509.62
  6. Step 6: Final answer
    x = 4,128.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.