Home / 3,783.15-5,675.24-1,317.40

Finding the Fourth Proportional to 3,783.15, 5,675.24 and 1,317.40

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Solution

The fourth proportional to 3,783.15, 5,675.24 and 1,317.40 is: 1,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.15 : 5,675.24 = 1,317.40 : x
  2. Step 2: Convert to fraction form
    3,783.15/5,675.24 = 1,317.40/x
  3. Step 3: Cross multiply
    3,783.15x = 5,675.24 × 1,317.40
  4. Step 4: Simplify right side
    3,783.15x = 7,476,548.79
  5. Step 5: Solve for x
    x = 7,476,548.79/3,783.15
  6. Step 6: Final answer
    x = 1,976.27

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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.