Home / 3,890.00-5,831.73-1,808.94

Finding the Fourth Proportional to 3,890.00, 5,831.73 and 1,808.94

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Solution

The fourth proportional to 3,890.00, 5,831.73 and 1,808.94 is: 2,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.00 : 5,831.73 = 1,808.94 : x
  2. Step 2: Convert to fraction form
    3,890.00/5,831.73 = 1,808.94/x
  3. Step 3: Cross multiply
    3,890.00x = 5,831.73 × 1,808.94
  4. Step 4: Simplify right side
    3,890.00x = 10,549,271.54
  5. Step 5: Solve for x
    x = 10,549,271.54/3,890.00
  6. Step 6: Final answer
    x = 2,711.89

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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.