Home / 3,281.16-4,921.81-1,090.06

Finding the Fourth Proportional to 3,281.16, 4,921.81 and 1,090.06

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Solution

The fourth proportional to 3,281.16, 4,921.81 and 1,090.06 is: 1,635.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.16 : 4,921.81 = 1,090.06 : x
  2. Step 2: Convert to fraction form
    3,281.16/4,921.81 = 1,090.06/x
  3. Step 3: Cross multiply
    3,281.16x = 4,921.81 × 1,090.06
  4. Step 4: Simplify right side
    3,281.16x = 5,365,059.31
  5. Step 5: Solve for x
    x = 5,365,059.31/3,281.16
  6. Step 6: Final answer
    x = 1,635.11

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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.