Home / 5,403.88-7,457.36-2,919.88

Finding the Fourth Proportional to 5,403.88, 7,457.36 and 2,919.88

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Solution

The fourth proportional to 5,403.88, 7,457.36 and 2,919.88 is: 4,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.88 : 7,457.36 = 2,919.88 : x
  2. Step 2: Convert to fraction form
    5,403.88/7,457.36 = 2,919.88/x
  3. Step 3: Cross multiply
    5,403.88x = 7,457.36 × 2,919.88
  4. Step 4: Simplify right side
    5,403.88x = 21,774,544.43
  5. Step 5: Solve for x
    x = 21,774,544.43/5,403.88
  6. Step 6: Final answer
    x = 4,029.43

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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.