Home / 3,675.85-5,513.67-1,078.79

Finding the Fourth Proportional to 3,675.85, 5,513.67 and 1,078.79

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Solution

The fourth proportional to 3,675.85, 5,513.67 and 1,078.79 is: 1,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.85 : 5,513.67 = 1,078.79 : x
  2. Step 2: Convert to fraction form
    3,675.85/5,513.67 = 1,078.79/x
  3. Step 3: Cross multiply
    3,675.85x = 5,513.67 × 1,078.79
  4. Step 4: Simplify right side
    3,675.85x = 5,948,064.49
  5. Step 5: Solve for x
    x = 5,948,064.49/3,675.85
  6. Step 6: Final answer
    x = 1,618.15

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1.5x scale

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.