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Finding the Fourth Proportional to 3,012.81, 4,516.11 and 1,258.84

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Solution

The fourth proportional to 3,012.81, 4,516.11 and 1,258.84 is: 1,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.81 : 4,516.11 = 1,258.84 : x
  2. Step 2: Convert to fraction form
    3,012.81/4,516.11 = 1,258.84/x
  3. Step 3: Cross multiply
    3,012.81x = 4,516.11 × 1,258.84
  4. Step 4: Simplify right side
    3,012.81x = 5,685,048.62
  5. Step 5: Solve for x
    x = 5,685,048.62/3,012.81
  6. Step 6: Final answer
    x = 1,886.96

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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.