Home / 3,555.78-5,333.64-1,090.64

Finding the Fourth Proportional to 3,555.78, 5,333.64 and 1,090.64

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Solution

The fourth proportional to 3,555.78, 5,333.64 and 1,090.64 is: 1,635.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.78 : 5,333.64 = 1,090.64 : x
  2. Step 2: Convert to fraction form
    3,555.78/5,333.64 = 1,090.64/x
  3. Step 3: Cross multiply
    3,555.78x = 5,333.64 × 1,090.64
  4. Step 4: Simplify right side
    3,555.78x = 5,817,054.46
  5. Step 5: Solve for x
    x = 5,817,054.46/3,555.78
  6. Step 6: Final answer
    x = 1,635.94

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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.