Home / 3,651.48-5,040.63-2,811.87

Finding the Fourth Proportional to 3,651.48, 5,040.63 and 2,811.87

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Solution

The fourth proportional to 3,651.48, 5,040.63 and 2,811.87 is: 3,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.48 : 5,040.63 = 2,811.87 : x
  2. Step 2: Convert to fraction form
    3,651.48/5,040.63 = 2,811.87/x
  3. Step 3: Cross multiply
    3,651.48x = 5,040.63 × 2,811.87
  4. Step 4: Simplify right side
    3,651.48x = 14,173,596.28
  5. Step 5: Solve for x
    x = 14,173,596.28/3,651.48
  6. Step 6: Final answer
    x = 3,881.60

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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.