Home / 5,388.35-7,435.87-2,998.31

Finding the Fourth Proportional to 5,388.35, 7,435.87 and 2,998.31

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Solution

The fourth proportional to 5,388.35, 7,435.87 and 2,998.31 is: 4,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.35 : 7,435.87 = 2,998.31 : x
  2. Step 2: Convert to fraction form
    5,388.35/7,435.87 = 2,998.31/x
  3. Step 3: Cross multiply
    5,388.35x = 7,435.87 × 2,998.31
  4. Step 4: Simplify right side
    5,388.35x = 22,295,054.47
  5. Step 5: Solve for x
    x = 22,295,054.47/5,388.35
  6. Step 6: Final answer
    x = 4,137.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.