Home / 7,181.04-10,772.49-1,986.96

Finding the Fourth Proportional to 7,181.04, 10,772.49 and 1,986.96

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Solution

The fourth proportional to 7,181.04, 10,772.49 and 1,986.96 is: 2,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.04 : 10,772.49 = 1,986.96 : x
  2. Step 2: Convert to fraction form
    7,181.04/10,772.49 = 1,986.96/x
  3. Step 3: Cross multiply
    7,181.04x = 10,772.49 × 1,986.96
  4. Step 4: Simplify right side
    7,181.04x = 21,404,506.73
  5. Step 5: Solve for x
    x = 21,404,506.73/7,181.04
  6. Step 6: Final answer
    x = 2,980.70

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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.