Home / 2,173.44-2,998.16-1,289.07

Finding the Fourth Proportional to 2,173.44, 2,998.16 and 1,289.07

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Solution

The fourth proportional to 2,173.44, 2,998.16 and 1,289.07 is: 1,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.44 : 2,998.16 = 1,289.07 : x
  2. Step 2: Convert to fraction form
    2,173.44/2,998.16 = 1,289.07/x
  3. Step 3: Cross multiply
    2,173.44x = 2,998.16 × 1,289.07
  4. Step 4: Simplify right side
    2,173.44x = 3,864,831.67
  5. Step 5: Solve for x
    x = 3,864,831.67/2,173.44
  6. Step 6: Final answer
    x = 1,778.21

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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.