Home / 3,211.40-4,817.34-1,480.04

Finding the Fourth Proportional to 3,211.40, 4,817.34 and 1,480.04

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Solution

The fourth proportional to 3,211.40, 4,817.34 and 1,480.04 is: 2,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.40 : 4,817.34 = 1,480.04 : x
  2. Step 2: Convert to fraction form
    3,211.40/4,817.34 = 1,480.04/x
  3. Step 3: Cross multiply
    3,211.40x = 4,817.34 × 1,480.04
  4. Step 4: Simplify right side
    3,211.40x = 7,129,855.89
  5. Step 5: Solve for x
    x = 7,129,855.89/3,211.40
  6. Step 6: Final answer
    x = 2,220.17

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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.