Home / 4,078.72-5,629.02-2,485.24

Finding the Fourth Proportional to 4,078.72, 5,629.02 and 2,485.24

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Solution

The fourth proportional to 4,078.72, 5,629.02 and 2,485.24 is: 3,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.72 : 5,629.02 = 2,485.24 : x
  2. Step 2: Convert to fraction form
    4,078.72/5,629.02 = 2,485.24/x
  3. Step 3: Cross multiply
    4,078.72x = 5,629.02 × 2,485.24
  4. Step 4: Simplify right side
    4,078.72x = 13,989,465.66
  5. Step 5: Solve for x
    x = 13,989,465.66/4,078.72
  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.