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Finding the Fourth Proportional to 2,604.83, 3,907.20 and 656.99

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Solution

The fourth proportional to 2,604.83, 3,907.20 and 656.99 is: 985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,604.83 : 3,907.20 = 656.99 : x
  2. Step 2: Convert to fraction form
    2,604.83/3,907.20 = 656.99/x
  3. Step 3: Cross multiply
    2,604.83x = 3,907.20 × 656.99
  4. Step 4: Simplify right side
    2,604.83x = 2,566,991.33
  5. Step 5: Solve for x
    x = 2,566,991.33/2,604.83
  6. Step 6: Final answer
    x = 985.47

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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.