Home / 3,871.24-5,803.26-1,405.48

Finding the Fourth Proportional to 3,871.24, 5,803.26 and 1,405.48

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Solution

The fourth proportional to 3,871.24, 5,803.26 and 1,405.48 is: 2,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.24 : 5,803.26 = 1,405.48 : x
  2. Step 2: Convert to fraction form
    3,871.24/5,803.26 = 1,405.48/x
  3. Step 3: Cross multiply
    3,871.24x = 5,803.26 × 1,405.48
  4. Step 4: Simplify right side
    3,871.24x = 8,156,365.86
  5. Step 5: Solve for x
    x = 8,156,365.86/3,871.24
  6. Step 6: Final answer
    x = 2,106.91

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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.