Home / 3,208.84-4,427.88-1,811.32

Finding the Fourth Proportional to 3,208.84, 4,427.88 and 1,811.32

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Solution

The fourth proportional to 3,208.84, 4,427.88 and 1,811.32 is: 2,499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.84 : 4,427.88 = 1,811.32 : x
  2. Step 2: Convert to fraction form
    3,208.84/4,427.88 = 1,811.32/x
  3. Step 3: Cross multiply
    3,208.84x = 4,427.88 × 1,811.32
  4. Step 4: Simplify right side
    3,208.84x = 8,020,307.60
  5. Step 5: Solve for x
    x = 8,020,307.60/3,208.84
  6. Step 6: Final answer
    x = 2,499.44

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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.