Home / 3,081.46-4,619.11-1,106.55

Finding the Fourth Proportional to 3,081.46, 4,619.11 and 1,106.55

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Solution

The fourth proportional to 3,081.46, 4,619.11 and 1,106.55 is: 1,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.46 : 4,619.11 = 1,106.55 : x
  2. Step 2: Convert to fraction form
    3,081.46/4,619.11 = 1,106.55/x
  3. Step 3: Cross multiply
    3,081.46x = 4,619.11 × 1,106.55
  4. Step 4: Simplify right side
    3,081.46x = 5,111,276.17
  5. Step 5: Solve for x
    x = 5,111,276.17/3,081.46
  6. Step 6: Final answer
    x = 1,658.72

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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.