Home / 4,831.24-6,666.40-2,786.80

Finding the Fourth Proportional to 4,831.24, 6,666.40 and 2,786.80

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Solution

The fourth proportional to 4,831.24, 6,666.40 and 2,786.80 is: 3,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.24 : 6,666.40 = 2,786.80 : x
  2. Step 2: Convert to fraction form
    4,831.24/6,666.40 = 2,786.80/x
  3. Step 3: Cross multiply
    4,831.24x = 6,666.40 × 2,786.80
  4. Step 4: Simplify right side
    4,831.24x = 18,577,923.52
  5. Step 5: Solve for x
    x = 18,577,923.52/4,831.24
  6. Step 6: Final answer
    x = 3,845.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.