Home / 7,746.37-11,620.31-2,480.05

Finding the Fourth Proportional to 7,746.37, 11,620.31 and 2,480.05

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Solution

The fourth proportional to 7,746.37, 11,620.31 and 2,480.05 is: 3,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.37 : 11,620.31 = 2,480.05 : x
  2. Step 2: Convert to fraction form
    7,746.37/11,620.31 = 2,480.05/x
  3. Step 3: Cross multiply
    7,746.37x = 11,620.31 × 2,480.05
  4. Step 4: Simplify right side
    7,746.37x = 28,818,949.82
  5. Step 5: Solve for x
    x = 28,818,949.82/7,746.37
  6. Step 6: Final answer
    x = 3,720.32

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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.