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Finding the Fourth Proportional to 3,011.91, 4,515.93 and 1,448.81

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Solution

The fourth proportional to 3,011.91, 4,515.93 and 1,448.81 is: 2,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.91 : 4,515.93 = 1,448.81 : x
  2. Step 2: Convert to fraction form
    3,011.91/4,515.93 = 1,448.81/x
  3. Step 3: Cross multiply
    3,011.91x = 4,515.93 × 1,448.81
  4. Step 4: Simplify right side
    3,011.91x = 6,542,701.96
  5. Step 5: Solve for x
    x = 6,542,701.96/3,011.91
  6. Step 6: Final answer
    x = 2,172.28

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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.