Home / 3,236.12-4,465.81-1,820.05

Finding the Fourth Proportional to 3,236.12, 4,465.81 and 1,820.05

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Solution

The fourth proportional to 3,236.12, 4,465.81 and 1,820.05 is: 2,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.12 : 4,465.81 = 1,820.05 : x
  2. Step 2: Convert to fraction form
    3,236.12/4,465.81 = 1,820.05/x
  3. Step 3: Cross multiply
    3,236.12x = 4,465.81 × 1,820.05
  4. Step 4: Simplify right side
    3,236.12x = 8,127,966.06
  5. Step 5: Solve for x
    x = 8,127,966.06/3,236.12
  6. Step 6: Final answer
    x = 2,511.64

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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.