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Finding the Fourth Proportional to 3,615, 5,423.36 and 1,116.11

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Solution

The fourth proportional to 3,615, 5,423.36 and 1,116.11 is: 1,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615 : 5,423.36 = 1,116.11 : x
  2. Step 2: Convert to fraction form
    3,615/5,423.36 = 1,116.11/x
  3. Step 3: Cross multiply
    3,615x = 5,423.36 × 1,116.11
  4. Step 4: Simplify right side
    3,615x = 6,053,033.63
  5. Step 5: Solve for x
    x = 6,053,033.63/3,615
  6. Step 6: Final answer
    x = 1,674.42

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Double scale
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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.