Home / 7,211.28-10,817.01-2,830.80

Finding the Fourth Proportional to 7,211.28, 10,817.01 and 2,830.80

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Solution

The fourth proportional to 7,211.28, 10,817.01 and 2,830.80 is: 4,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.28 : 10,817.01 = 2,830.80 : x
  2. Step 2: Convert to fraction form
    7,211.28/10,817.01 = 2,830.80/x
  3. Step 3: Cross multiply
    7,211.28x = 10,817.01 × 2,830.80
  4. Step 4: Simplify right side
    7,211.28x = 30,620,791.91
  5. Step 5: Solve for x
    x = 30,620,791.91/7,211.28
  6. Step 6: Final answer
    x = 4,246.24

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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.