Home / 3,718.08-5,577.24-1,121.01

Finding the Fourth Proportional to 3,718.08, 5,577.24 and 1,121.01

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Solution

The fourth proportional to 3,718.08, 5,577.24 and 1,121.01 is: 1,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.08 : 5,577.24 = 1,121.01 : x
  2. Step 2: Convert to fraction form
    3,718.08/5,577.24 = 1,121.01/x
  3. Step 3: Cross multiply
    3,718.08x = 5,577.24 × 1,121.01
  4. Step 4: Simplify right side
    3,718.08x = 6,252,141.81
  5. Step 5: Solve for x
    x = 6,252,141.81/3,718.08
  6. Step 6: Final answer
    x = 1,681.55

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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.