Home / 2,155.19-3,224.88-1,764.23

Finding the Fourth Proportional to 2,155.19, 3,224.88 and 1,764.23

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Solution

The fourth proportional to 2,155.19, 3,224.88 and 1,764.23 is: 2,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.19 : 3,224.88 = 1,764.23 : x
  2. Step 2: Convert to fraction form
    2,155.19/3,224.88 = 1,764.23/x
  3. Step 3: Cross multiply
    2,155.19x = 3,224.88 × 1,764.23
  4. Step 4: Simplify right side
    2,155.19x = 5,689,413.92
  5. Step 5: Solve for x
    x = 5,689,413.92/2,155.19
  6. Step 6: Final answer
    x = 2,639.87

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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.