Home / 2,409.32-3,609.56-2,021.81

Finding the Fourth Proportional to 2,409.32, 3,609.56 and 2,021.81

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Solution

The fourth proportional to 2,409.32, 3,609.56 and 2,021.81 is: 3,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.32 : 3,609.56 = 2,021.81 : x
  2. Step 2: Convert to fraction form
    2,409.32/3,609.56 = 2,021.81/x
  3. Step 3: Cross multiply
    2,409.32x = 3,609.56 × 2,021.81
  4. Step 4: Simplify right side
    2,409.32x = 7,297,831.51
  5. Step 5: Solve for x
    x = 7,297,831.51/2,409.32
  6. Step 6: Final answer
    x = 3,029.00

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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.