Home / 2,261.93-3,389.90-1,222.19

Finding the Fourth Proportional to 2,261.93, 3,389.90 and 1,222.19

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Solution

The fourth proportional to 2,261.93, 3,389.90 and 1,222.19 is: 1,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.93 : 3,389.90 = 1,222.19 : x
  2. Step 2: Convert to fraction form
    2,261.93/3,389.90 = 1,222.19/x
  3. Step 3: Cross multiply
    2,261.93x = 3,389.90 × 1,222.19
  4. Step 4: Simplify right side
    2,261.93x = 4,143,078.82
  5. Step 5: Solve for x
    x = 4,143,078.82/2,261.93
  6. Step 6: Final answer
    x = 1,831.66

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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.