Home / 2,180.76-3,000.14-1,927.42

Finding the Fourth Proportional to 2,180.76, 3,000.14 and 1,927.42

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Solution

The fourth proportional to 2,180.76, 3,000.14 and 1,927.42 is: 2,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.76 : 3,000.14 = 1,927.42 : x
  2. Step 2: Convert to fraction form
    2,180.76/3,000.14 = 1,927.42/x
  3. Step 3: Cross multiply
    2,180.76x = 3,000.14 × 1,927.42
  4. Step 4: Simplify right side
    2,180.76x = 5,782,529.84
  5. Step 5: Solve for x
    x = 5,782,529.84/2,180.76
  6. Step 6: Final answer
    x = 2,651.61

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Half scale
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Double scale
Find fourth proportional to 2,181.76, 3,001.52 and 1,928.42
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.