Home / 3,208.34-4,427.50-1,811.08

Finding the Fourth Proportional to 3,208.34, 4,427.50 and 1,811.08

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Solution

The fourth proportional to 3,208.34, 4,427.50 and 1,811.08 is: 2,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.34 : 4,427.50 = 1,811.08 : x
  2. Step 2: Convert to fraction form
    3,208.34/4,427.50 = 1,811.08/x
  3. Step 3: Cross multiply
    3,208.34x = 4,427.50 × 1,811.08
  4. Step 4: Simplify right side
    3,208.34x = 8,018,556.70
  5. Step 5: Solve for x
    x = 8,018,556.70/3,208.34
  6. Step 6: Final answer
    x = 2,499.29

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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.