Home / 4,078.68-5,629.69-2,400.63

Finding the Fourth Proportional to 4,078.68, 5,629.69 and 2,400.63

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Solution

The fourth proportional to 4,078.68, 5,629.69 and 2,400.63 is: 3,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.68 : 5,629.69 = 2,400.63 : x
  2. Step 2: Convert to fraction form
    4,078.68/5,629.69 = 2,400.63/x
  3. Step 3: Cross multiply
    4,078.68x = 5,629.69 × 2,400.63
  4. Step 4: Simplify right side
    4,078.68x = 13,514,796.70
  5. Step 5: Solve for x
    x = 13,514,796.70/4,078.68
  6. Step 6: Final answer
    x = 3,313.52

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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.