Home / 4,172.85-6,259.29-1,399.02

Finding the Fourth Proportional to 4,172.85, 6,259.29 and 1,399.02

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Solution

The fourth proportional to 4,172.85, 6,259.29 and 1,399.02 is: 2,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.85 : 6,259.29 = 1,399.02 : x
  2. Step 2: Convert to fraction form
    4,172.85/6,259.29 = 1,399.02/x
  3. Step 3: Cross multiply
    4,172.85x = 6,259.29 × 1,399.02
  4. Step 4: Simplify right side
    4,172.85x = 8,756,871.90
  5. Step 5: Solve for x
    x = 8,756,871.90/4,172.85
  6. Step 6: Final answer
    x = 2,098.54

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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.