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Finding the Fourth Proportional to 3,069.38, 4,603.59 and 878.19

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Solution

The fourth proportional to 3,069.38, 4,603.59 and 878.19 is: 1,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.38 : 4,603.59 = 878.19 : x
  2. Step 2: Convert to fraction form
    3,069.38/4,603.59 = 878.19/x
  3. Step 3: Cross multiply
    3,069.38x = 4,603.59 × 878.19
  4. Step 4: Simplify right side
    3,069.38x = 4,042,826.70
  5. Step 5: Solve for x
    x = 4,042,826.70/3,069.38
  6. Step 6: Final answer
    x = 1,317.15

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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.