Home / 3,137.48-4,329.75-1,811.41

Finding the Fourth Proportional to 3,137.48, 4,329.75 and 1,811.41

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Solution

The fourth proportional to 3,137.48, 4,329.75 and 1,811.41 is: 2,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.48 : 4,329.75 = 1,811.41 : x
  2. Step 2: Convert to fraction form
    3,137.48/4,329.75 = 1,811.41/x
  3. Step 3: Cross multiply
    3,137.48x = 4,329.75 × 1,811.41
  4. Step 4: Simplify right side
    3,137.48x = 7,842,972.77
  5. Step 5: Solve for x
    x = 7,842,972.77/3,137.48
  6. Step 6: Final answer
    x = 2,499.76

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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.