Home / 3,208.53-4,427.90-1,811.25

Finding the Fourth Proportional to 3,208.53, 4,427.90 and 1,811.25

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Solution

The fourth proportional to 3,208.53, 4,427.90 and 1,811.25 is: 2,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.53 : 4,427.90 = 1,811.25 : x
  2. Step 2: Convert to fraction form
    3,208.53/4,427.90 = 1,811.25/x
  3. Step 3: Cross multiply
    3,208.53x = 4,427.90 × 1,811.25
  4. Step 4: Simplify right side
    3,208.53x = 8,020,024.82
  5. Step 5: Solve for x
    x = 8,020,024.82/3,208.53
  6. Step 6: Final answer
    x = 2,499.59

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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.