Home / 3,555.89-5,333.21-1,090.05

Finding the Fourth Proportional to 3,555.89, 5,333.21 and 1,090.05

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Solution

The fourth proportional to 3,555.89, 5,333.21 and 1,090.05 is: 1,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.89 : 5,333.21 = 1,090.05 : x
  2. Step 2: Convert to fraction form
    3,555.89/5,333.21 = 1,090.05/x
  3. Step 3: Cross multiply
    3,555.89x = 5,333.21 × 1,090.05
  4. Step 4: Simplify right side
    3,555.89x = 5,813,444.20
  5. Step 5: Solve for x
    x = 5,813,444.20/3,555.89
  6. Step 6: Final answer
    x = 1,634.88

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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.