Home / 4,172.29-6,259.83-1,399.24

Finding the Fourth Proportional to 4,172.29, 6,259.83 and 1,399.24

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Solution

The fourth proportional to 4,172.29, 6,259.83 and 1,399.24 is: 2,099.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.29 : 6,259.83 = 1,399.24 : x
  2. Step 2: Convert to fraction form
    4,172.29/6,259.83 = 1,399.24/x
  3. Step 3: Cross multiply
    4,172.29x = 6,259.83 × 1,399.24
  4. Step 4: Simplify right side
    4,172.29x = 8,759,004.53
  5. Step 5: Solve for x
    x = 8,759,004.53/4,172.29
  6. Step 6: Final answer
    x = 2,099.33

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1.5x scale

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.