Home / 1,831.65-2,739.54-1,079.37

Finding the Fourth Proportional to 1,831.65, 2,739.54 and 1,079.37

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Solution

The fourth proportional to 1,831.65, 2,739.54 and 1,079.37 is: 1,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.65 : 2,739.54 = 1,079.37 : x
  2. Step 2: Convert to fraction form
    1,831.65/2,739.54 = 1,079.37/x
  3. Step 3: Cross multiply
    1,831.65x = 2,739.54 × 1,079.37
  4. Step 4: Simplify right side
    1,831.65x = 2,956,977.89
  5. Step 5: Solve for x
    x = 2,956,977.89/1,831.65
  6. Step 6: Final answer
    x = 1,614.38

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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.