Home / 3,485.99-5,228.73-1,145.97

Finding the Fourth Proportional to 3,485.99, 5,228.73 and 1,145.97

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Solution

The fourth proportional to 3,485.99, 5,228.73 and 1,145.97 is: 1,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.99 : 5,228.73 = 1,145.97 : x
  2. Step 2: Convert to fraction form
    3,485.99/5,228.73 = 1,145.97/x
  3. Step 3: Cross multiply
    3,485.99x = 5,228.73 × 1,145.97
  4. Step 4: Simplify right side
    3,485.99x = 5,991,967.72
  5. Step 5: Solve for x
    x = 5,991,967.72/3,485.99
  6. Step 6: Final answer
    x = 1,718.87

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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.