Home / 3,072.24-4,608.12-1,317.24

Finding the Fourth Proportional to 3,072.24, 4,608.12 and 1,317.24

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Solution

The fourth proportional to 3,072.24, 4,608.12 and 1,317.24 is: 1,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.24 : 4,608.12 = 1,317.24 : x
  2. Step 2: Convert to fraction form
    3,072.24/4,608.12 = 1,317.24/x
  3. Step 3: Cross multiply
    3,072.24x = 4,608.12 × 1,317.24
  4. Step 4: Simplify right side
    3,072.24x = 6,069,999.99
  5. Step 5: Solve for x
    x = 6,069,999.99/3,072.24
  6. Step 6: Final answer
    x = 1,975.76

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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.