Home / 3,220.40-4,444.09-1,804.07

Finding the Fourth Proportional to 3,220.40, 4,444.09 and 1,804.07

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Solution

The fourth proportional to 3,220.40, 4,444.09 and 1,804.07 is: 2,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.40 : 4,444.09 = 1,804.07 : x
  2. Step 2: Convert to fraction form
    3,220.40/4,444.09 = 1,804.07/x
  3. Step 3: Cross multiply
    3,220.40x = 4,444.09 × 1,804.07
  4. Step 4: Simplify right side
    3,220.40x = 8,017,449.45
  5. Step 5: Solve for x
    x = 8,017,449.45/3,220.40
  6. Step 6: Final answer
    x = 2,489.59

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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.