Home / 3,852.09-5,775.71-2,121.93

Finding the Fourth Proportional to 3,852.09, 5,775.71 and 2,121.93

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Solution

The fourth proportional to 3,852.09, 5,775.71 and 2,121.93 is: 3,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.09 : 5,775.71 = 2,121.93 : x
  2. Step 2: Convert to fraction form
    3,852.09/5,775.71 = 2,121.93/x
  3. Step 3: Cross multiply
    3,852.09x = 5,775.71 × 2,121.93
  4. Step 4: Simplify right side
    3,852.09x = 12,255,641.71
  5. Step 5: Solve for x
    x = 12,255,641.71/3,852.09
  6. Step 6: Final answer
    x = 3,181.56

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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.