Home / 5,418.03-8,127.33-1,720.55

Finding the Fourth Proportional to 5,418.03, 8,127.33 and 1,720.55

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Solution

The fourth proportional to 5,418.03, 8,127.33 and 1,720.55 is: 2,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.03 : 8,127.33 = 1,720.55 : x
  2. Step 2: Convert to fraction form
    5,418.03/8,127.33 = 1,720.55/x
  3. Step 3: Cross multiply
    5,418.03x = 8,127.33 × 1,720.55
  4. Step 4: Simplify right side
    5,418.03x = 13,983,477.63
  5. Step 5: Solve for x
    x = 13,983,477.63/5,418.03
  6. Step 6: Final answer
    x = 2,580.92

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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.