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Finding the Fourth Proportional to 2,650.77, 3,662.76 and 1,907.19

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Solution

The fourth proportional to 2,650.77, 3,662.76 and 1,907.19 is: 2,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.77 : 3,662.76 = 1,907.19 : x
  2. Step 2: Convert to fraction form
    2,650.77/3,662.76 = 1,907.19/x
  3. Step 3: Cross multiply
    2,650.77x = 3,662.76 × 1,907.19
  4. Step 4: Simplify right side
    2,650.77x = 6,985,579.24
  5. Step 5: Solve for x
    x = 6,985,579.24/2,650.77
  6. Step 6: Final answer
    x = 2,635.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.