Home / 3,069.64-4,603.85-1,121.18

Finding the Fourth Proportional to 3,069.64, 4,603.85 and 1,121.18

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Solution

The fourth proportional to 3,069.64, 4,603.85 and 1,121.18 is: 1,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.64 : 4,603.85 = 1,121.18 : x
  2. Step 2: Convert to fraction form
    3,069.64/4,603.85 = 1,121.18/x
  3. Step 3: Cross multiply
    3,069.64x = 4,603.85 × 1,121.18
  4. Step 4: Simplify right side
    3,069.64x = 5,161,738.94
  5. Step 5: Solve for x
    x = 5,161,738.94/3,069.64
  6. Step 6: Final answer
    x = 1,681.55

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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.