Home / 2,485.85-3,720.89-1,651.25

Finding the Fourth Proportional to 2,485.85, 3,720.89 and 1,651.25

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Solution

The fourth proportional to 2,485.85, 3,720.89 and 1,651.25 is: 2,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.85 : 3,720.89 = 1,651.25 : x
  2. Step 2: Convert to fraction form
    2,485.85/3,720.89 = 1,651.25/x
  3. Step 3: Cross multiply
    2,485.85x = 3,720.89 × 1,651.25
  4. Step 4: Simplify right side
    2,485.85x = 6,144,133.04
  5. Step 5: Solve for x
    x = 6,144,133.04/2,485.85
  6. Step 6: Final answer
    x = 2,471.65

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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.