Home / 3,236.75-4,465.70-1,820.21

Finding the Fourth Proportional to 3,236.75, 4,465.70 and 1,820.21

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Solution

The fourth proportional to 3,236.75, 4,465.70 and 1,820.21 is: 2,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.75 : 4,465.70 = 1,820.21 : x
  2. Step 2: Convert to fraction form
    3,236.75/4,465.70 = 1,820.21/x
  3. Step 3: Cross multiply
    3,236.75x = 4,465.70 × 1,820.21
  4. Step 4: Simplify right side
    3,236.75x = 8,128,527.51
  5. Step 5: Solve for x
    x = 8,128,527.51/3,236.75
  6. Step 6: Final answer
    x = 2,511.32

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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.