Home / 7,340.74-11,012.78-3,181.44

Finding the Fourth Proportional to 7,340.74, 11,012.78 and 3,181.44

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Solution

The fourth proportional to 7,340.74, 11,012.78 and 3,181.44 is: 4,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.74 : 11,012.78 = 3,181.44 : x
  2. Step 2: Convert to fraction form
    7,340.74/11,012.78 = 3,181.44/x
  3. Step 3: Cross multiply
    7,340.74x = 11,012.78 × 3,181.44
  4. Step 4: Simplify right side
    7,340.74x = 35,036,506.76
  5. Step 5: Solve for x
    x = 35,036,506.76/7,340.74
  6. Step 6: Final answer
    x = 4,772.89

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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.