Home / 3,211.51-4,817.19-1,480.14

Finding the Fourth Proportional to 3,211.51, 4,817.19 and 1,480.14

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Solution

The fourth proportional to 3,211.51, 4,817.19 and 1,480.14 is: 2,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.51 : 4,817.19 = 1,480.14 : x
  2. Step 2: Convert to fraction form
    3,211.51/4,817.19 = 1,480.14/x
  3. Step 3: Cross multiply
    3,211.51x = 4,817.19 × 1,480.14
  4. Step 4: Simplify right side
    3,211.51x = 7,130,091.52
  5. Step 5: Solve for x
    x = 7,130,091.52/3,211.51
  6. Step 6: Final answer
    x = 2,220.17

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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.