Home / 4,172.90-6,259.62-1,399.46

Finding the Fourth Proportional to 4,172.90, 6,259.62 and 1,399.46

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Solution

The fourth proportional to 4,172.90, 6,259.62 and 1,399.46 is: 2,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.90 : 6,259.62 = 1,399.46 : x
  2. Step 2: Convert to fraction form
    4,172.90/6,259.62 = 1,399.46/x
  3. Step 3: Cross multiply
    4,172.90x = 6,259.62 × 1,399.46
  4. Step 4: Simplify right side
    4,172.90x = 8,760,087.81
  5. Step 5: Solve for x
    x = 8,760,087.81/4,172.90
  6. Step 6: Final answer
    x = 2,099.28

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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.