Home / 3,078.14-4,617.09-1,692.12

Finding the Fourth Proportional to 3,078.14, 4,617.09 and 1,692.12

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Solution

The fourth proportional to 3,078.14, 4,617.09 and 1,692.12 is: 2,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.14 : 4,617.09 = 1,692.12 : x
  2. Step 2: Convert to fraction form
    3,078.14/4,617.09 = 1,692.12/x
  3. Step 3: Cross multiply
    3,078.14x = 4,617.09 × 1,692.12
  4. Step 4: Simplify right side
    3,078.14x = 7,812,670.33
  5. Step 5: Solve for x
    x = 7,812,670.33/3,078.14
  6. Step 6: Final answer
    x = 2,538.11

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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.