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Finding the Fourth Proportional to 3,577.98, 5,370.93 and 2,119.98

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Solution

The fourth proportional to 3,577.98, 5,370.93 and 2,119.98 is: 3,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.98 : 5,370.93 = 2,119.98 : x
  2. Step 2: Convert to fraction form
    3,577.98/5,370.93 = 2,119.98/x
  3. Step 3: Cross multiply
    3,577.98x = 5,370.93 × 2,119.98
  4. Step 4: Simplify right side
    3,577.98x = 11,386,264.18
  5. Step 5: Solve for x
    x = 11,386,264.18/3,577.98
  6. Step 6: Final answer
    x = 3,182.32

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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.