Home / 3,718.44-5,577.80-1,121.31

Finding the Fourth Proportional to 3,718.44, 5,577.80 and 1,121.31

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Solution

The fourth proportional to 3,718.44, 5,577.80 and 1,121.31 is: 1,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.44 : 5,577.80 = 1,121.31 : x
  2. Step 2: Convert to fraction form
    3,718.44/5,577.80 = 1,121.31/x
  3. Step 3: Cross multiply
    3,718.44x = 5,577.80 × 1,121.31
  4. Step 4: Simplify right side
    3,718.44x = 6,254,437.31
  5. Step 5: Solve for x
    x = 6,254,437.31/3,718.44
  6. Step 6: Final answer
    x = 1,682.01

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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.