Home / 1,636.10-2,450.28-1,245.63

Finding the Fourth Proportional to 1,636.10, 2,450.28 and 1,245.63

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Solution

The fourth proportional to 1,636.10, 2,450.28 and 1,245.63 is: 1,865.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.10 : 2,450.28 = 1,245.63 : x
  2. Step 2: Convert to fraction form
    1,636.10/2,450.28 = 1,245.63/x
  3. Step 3: Cross multiply
    1,636.10x = 2,450.28 × 1,245.63
  4. Step 4: Simplify right side
    1,636.10x = 3,052,142.28
  5. Step 5: Solve for x
    x = 3,052,142.28/1,636.10
  6. Step 6: Final answer
    x = 1,865.50

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1.5x scale

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.