Home / 4,079.87-5,629.60-2,485.69

Finding the Fourth Proportional to 4,079.87, 5,629.60 and 2,485.69

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Solution

The fourth proportional to 4,079.87, 5,629.60 and 2,485.69 is: 3,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.87 : 5,629.60 = 2,485.69 : x
  2. Step 2: Convert to fraction form
    4,079.87/5,629.60 = 2,485.69/x
  3. Step 3: Cross multiply
    4,079.87x = 5,629.60 × 2,485.69
  4. Step 4: Simplify right side
    4,079.87x = 13,993,429.46
  5. Step 5: Solve for x
    x = 13,993,429.46/4,079.87
  6. Step 6: Final answer
    x = 3,429.87

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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.