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Finding the Fourth Proportional to 3,577.95, 5,366.93 and 980.82

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Solution

The fourth proportional to 3,577.95, 5,366.93 and 980.82 is: 1,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.95 : 5,366.93 = 980.82 : x
  2. Step 2: Convert to fraction form
    3,577.95/5,366.93 = 980.82/x
  3. Step 3: Cross multiply
    3,577.95x = 5,366.93 × 980.82
  4. Step 4: Simplify right side
    3,577.95x = 5,263,987.38
  5. Step 5: Solve for x
    x = 5,263,987.38/3,577.95
  6. Step 6: Final answer
    x = 1,471.23

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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.