Home / 7,111.17-10,667.19-2,180.85

Finding the Fourth Proportional to 7,111.17, 10,667.19 and 2,180.85

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Solution

The fourth proportional to 7,111.17, 10,667.19 and 2,180.85 is: 3,271.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.17 : 10,667.19 = 2,180.85 : x
  2. Step 2: Convert to fraction form
    7,111.17/10,667.19 = 2,180.85/x
  3. Step 3: Cross multiply
    7,111.17x = 10,667.19 × 2,180.85
  4. Step 4: Simplify right side
    7,111.17x = 23,263,541.31
  5. Step 5: Solve for x
    x = 23,263,541.31/7,111.17
  6. Step 6: Final answer
    x = 3,271.41

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Double scale
Find fourth proportional to 7,112.17, 10,668.69 and 2,181.85
Similar ratio
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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.