Home / 7,211.67-10,817.19-2,281.20

Finding the Fourth Proportional to 7,211.67, 10,817.19 and 2,281.20

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Solution

The fourth proportional to 7,211.67, 10,817.19 and 2,281.20 is: 3,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.67 : 10,817.19 = 2,281.20 : x
  2. Step 2: Convert to fraction form
    7,211.67/10,817.19 = 2,281.20/x
  3. Step 3: Cross multiply
    7,211.67x = 10,817.19 × 2,281.20
  4. Step 4: Simplify right side
    7,211.67x = 24,676,173.83
  5. Step 5: Solve for x
    x = 24,676,173.83/7,211.67
  6. Step 6: Final answer
    x = 3,421.70

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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.