Home / 5,871.89-8,103.65-3,219.55

Finding the Fourth Proportional to 5,871.89, 8,103.65 and 3,219.55

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Solution

The fourth proportional to 5,871.89, 8,103.65 and 3,219.55 is: 4,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.89 : 8,103.65 = 3,219.55 : x
  2. Step 2: Convert to fraction form
    5,871.89/8,103.65 = 3,219.55/x
  3. Step 3: Cross multiply
    5,871.89x = 8,103.65 × 3,219.55
  4. Step 4: Simplify right side
    5,871.89x = 26,090,070.00
  5. Step 5: Solve for x
    x = 26,090,070.00/5,871.89
  6. Step 6: Final answer
    x = 4,443.21

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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.