Home / 3,069.66-4,603.68-1,220.70

Finding the Fourth Proportional to 3,069.66, 4,603.68 and 1,220.70

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Solution

The fourth proportional to 3,069.66, 4,603.68 and 1,220.70 is: 1,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.66 : 4,603.68 = 1,220.70 : x
  2. Step 2: Convert to fraction form
    3,069.66/4,603.68 = 1,220.70/x
  3. Step 3: Cross multiply
    3,069.66x = 4,603.68 × 1,220.70
  4. Step 4: Simplify right side
    3,069.66x = 5,619,712.18
  5. Step 5: Solve for x
    x = 5,619,712.18/3,069.66
  6. Step 6: Final answer
    x = 1,830.73

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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.