Home / 2,831.88-4,247.16-1,188.24

Finding the Fourth Proportional to 2,831.88, 4,247.16 and 1,188.24

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Solution

The fourth proportional to 2,831.88, 4,247.16 and 1,188.24 is: 1,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.88 : 4,247.16 = 1,188.24 : x
  2. Step 2: Convert to fraction form
    2,831.88/4,247.16 = 1,188.24/x
  3. Step 3: Cross multiply
    2,831.88x = 4,247.16 × 1,188.24
  4. Step 4: Simplify right side
    2,831.88x = 5,046,645.40
  5. Step 5: Solve for x
    x = 5,046,645.40/2,831.88
  6. Step 6: Final answer
    x = 1,782.08

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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.