Home / 5,515.89-7,608.49-3,420.01

Finding the Fourth Proportional to 5,515.89, 7,608.49 and 3,420.01

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Solution

The fourth proportional to 5,515.89, 7,608.49 and 3,420.01 is: 4,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.89 : 7,608.49 = 3,420.01 : x
  2. Step 2: Convert to fraction form
    5,515.89/7,608.49 = 3,420.01/x
  3. Step 3: Cross multiply
    5,515.89x = 7,608.49 × 3,420.01
  4. Step 4: Simplify right side
    5,515.89x = 26,021,111.88
  5. Step 5: Solve for x
    x = 26,021,111.88/5,515.89
  6. Step 6: Final answer
    x = 4,717.48

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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.