Home / 2,799.08-3,859.56-2,211

Finding the Fourth Proportional to 2,799.08, 3,859.56 and 2,211

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Solution

The fourth proportional to 2,799.08, 3,859.56 and 2,211 is: 3,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.08 : 3,859.56 = 2,211 : x
  2. Step 2: Convert to fraction form
    2,799.08/3,859.56 = 2,211/x
  3. Step 3: Cross multiply
    2,799.08x = 3,859.56 × 2,211
  4. Step 4: Simplify right side
    2,799.08x = 8,533,487.16
  5. Step 5: Solve for x
    x = 8,533,487.16/2,799.08
  6. Step 6: Final answer
    x = 3,048.68

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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.