Home / 2,831.08-4,243.74-1,188.76

Finding the Fourth Proportional to 2,831.08, 4,243.74 and 1,188.76

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Solution

The fourth proportional to 2,831.08, 4,243.74 and 1,188.76 is: 1,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.08 : 4,243.74 = 1,188.76 : x
  2. Step 2: Convert to fraction form
    2,831.08/4,243.74 = 1,188.76/x
  3. Step 3: Cross multiply
    2,831.08x = 4,243.74 × 1,188.76
  4. Step 4: Simplify right side
    2,831.08x = 5,044,788.36
  5. Step 5: Solve for x
    x = 5,044,788.36/2,831.08
  6. Step 6: Final answer
    x = 1,781.93

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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.