Home / 2,485.37-3,431.01-2,285.22

Finding the Fourth Proportional to 2,485.37, 3,431.01 and 2,285.22

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Solution

The fourth proportional to 2,485.37, 3,431.01 and 2,285.22 is: 3,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.37 : 3,431.01 = 2,285.22 : x
  2. Step 2: Convert to fraction form
    2,485.37/3,431.01 = 2,285.22/x
  3. Step 3: Cross multiply
    2,485.37x = 3,431.01 × 2,285.22
  4. Step 4: Simplify right side
    2,485.37x = 7,840,612.67
  5. Step 5: Solve for x
    x = 7,840,612.67/2,485.37
  6. Step 6: Final answer
    x = 3,154.71

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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.