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Finding the Fourth Proportional to 3,334.48, 4,998.48 and 1,388.32

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Solution

The fourth proportional to 3,334.48, 4,998.48 and 1,388.32 is: 2,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.48 : 4,998.48 = 1,388.32 : x
  2. Step 2: Convert to fraction form
    3,334.48/4,998.48 = 1,388.32/x
  3. Step 3: Cross multiply
    3,334.48x = 4,998.48 × 1,388.32
  4. Step 4: Simplify right side
    3,334.48x = 6,939,489.75
  5. Step 5: Solve for x
    x = 6,939,489.75/3,334.48
  6. Step 6: Final answer
    x = 2,081.13

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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.