Home / 3,811.52-5,718.36-2,424.80

Finding the Fourth Proportional to 3,811.52, 5,718.36 and 2,424.80

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Solution

The fourth proportional to 3,811.52, 5,718.36 and 2,424.80 is: 3,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.52 : 5,718.36 = 2,424.80 : x
  2. Step 2: Convert to fraction form
    3,811.52/5,718.36 = 2,424.80/x
  3. Step 3: Cross multiply
    3,811.52x = 5,718.36 × 2,424.80
  4. Step 4: Simplify right side
    3,811.52x = 13,865,879.33
  5. Step 5: Solve for x
    x = 13,865,879.33/3,811.52
  6. Step 6: Final answer
    x = 3,637.89

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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.