Home / 3,639.11-5,458.64-1,042.05

Finding the Fourth Proportional to 3,639.11, 5,458.64 and 1,042.05

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Solution

The fourth proportional to 3,639.11, 5,458.64 and 1,042.05 is: 1,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.11 : 5,458.64 = 1,042.05 : x
  2. Step 2: Convert to fraction form
    3,639.11/5,458.64 = 1,042.05/x
  3. Step 3: Cross multiply
    3,639.11x = 5,458.64 × 1,042.05
  4. Step 4: Simplify right side
    3,639.11x = 5,688,170.60
  5. Step 5: Solve for x
    x = 5,688,170.60/3,639.11
  6. Step 6: Final answer
    x = 1,563.07

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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.