Home / 3,871.52-5,804.80-2,141.36

Finding the Fourth Proportional to 3,871.52, 5,804.80 and 2,141.36

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Solution

The fourth proportional to 3,871.52, 5,804.80 and 2,141.36 is: 3,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.52 : 5,804.80 = 2,141.36 : x
  2. Step 2: Convert to fraction form
    3,871.52/5,804.80 = 2,141.36/x
  3. Step 3: Cross multiply
    3,871.52x = 5,804.80 × 2,141.36
  4. Step 4: Simplify right side
    3,871.52x = 12,430,166.53
  5. Step 5: Solve for x
    x = 12,430,166.53/3,871.52
  6. Step 6: Final answer
    x = 3,210.67

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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.