Home / 2,605.12-3,903.42-2,507.92

Finding the Fourth Proportional to 2,605.12, 3,903.42 and 2,507.92

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Solution

The fourth proportional to 2,605.12, 3,903.42 and 2,507.92 is: 3,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.12 : 3,903.42 = 2,507.92 : x
  2. Step 2: Convert to fraction form
    2,605.12/3,903.42 = 2,507.92/x
  3. Step 3: Cross multiply
    2,605.12x = 3,903.42 × 2,507.92
  4. Step 4: Simplify right side
    2,605.12x = 9,789,465.09
  5. Step 5: Solve for x
    x = 9,789,465.09/2,605.12
  6. Step 6: Final answer
    x = 3,757.78

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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.