Home / 4,140.76-6,211.14-1,219.07

Finding the Fourth Proportional to 4,140.76, 6,211.14 and 1,219.07

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Solution

The fourth proportional to 4,140.76, 6,211.14 and 1,219.07 is: 1,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.76 : 6,211.14 = 1,219.07 : x
  2. Step 2: Convert to fraction form
    4,140.76/6,211.14 = 1,219.07/x
  3. Step 3: Cross multiply
    4,140.76x = 6,211.14 × 1,219.07
  4. Step 4: Simplify right side
    4,140.76x = 7,571,814.44
  5. Step 5: Solve for x
    x = 7,571,814.44/4,140.76
  6. Step 6: Final answer
    x = 1,828.61

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Double scale
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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.