Home / 3,090.32-4,631.61-1,333.33

Finding the Fourth Proportional to 3,090.32, 4,631.61 and 1,333.33

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Solution

The fourth proportional to 3,090.32, 4,631.61 and 1,333.33 is: 1,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.32 : 4,631.61 = 1,333.33 : x
  2. Step 2: Convert to fraction form
    3,090.32/4,631.61 = 1,333.33/x
  3. Step 3: Cross multiply
    3,090.32x = 4,631.61 × 1,333.33
  4. Step 4: Simplify right side
    3,090.32x = 6,175,457.98
  5. Step 5: Solve for x
    x = 6,175,457.98/3,090.32
  6. Step 6: Final answer
    x = 1,998.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.