Home / 2,261.55-3,386.25-1,286.31

Finding the Fourth Proportional to 2,261.55, 3,386.25 and 1,286.31

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Solution

The fourth proportional to 2,261.55, 3,386.25 and 1,286.31 is: 1,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.55 : 3,386.25 = 1,286.31 : x
  2. Step 2: Convert to fraction form
    2,261.55/3,386.25 = 1,286.31/x
  3. Step 3: Cross multiply
    2,261.55x = 3,386.25 × 1,286.31
  4. Step 4: Simplify right side
    2,261.55x = 4,355,767.24
  5. Step 5: Solve for x
    x = 4,355,767.24/2,261.55
  6. Step 6: Final answer
    x = 1,926.01

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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.