Home / 3,778.08-5,667.09-1,312.89

Finding the Fourth Proportional to 3,778.08, 5,667.09 and 1,312.89

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Solution

The fourth proportional to 3,778.08, 5,667.09 and 1,312.89 is: 1,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.08 : 5,667.09 = 1,312.89 : x
  2. Step 2: Convert to fraction form
    3,778.08/5,667.09 = 1,312.89/x
  3. Step 3: Cross multiply
    3,778.08x = 5,667.09 × 1,312.89
  4. Step 4: Simplify right side
    3,778.08x = 7,440,265.79
  5. Step 5: Solve for x
    x = 7,440,265.79/3,778.08
  6. Step 6: Final answer
    x = 1,969.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.