Home / 4,650.17-6,418.91-3,078.77

Finding the Fourth Proportional to 4,650.17, 6,418.91 and 3,078.77

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Solution

The fourth proportional to 4,650.17, 6,418.91 and 3,078.77 is: 4,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,650.17 : 6,418.91 = 3,078.77 : x
  2. Step 2: Convert to fraction form
    4,650.17/6,418.91 = 3,078.77/x
  3. Step 3: Cross multiply
    4,650.17x = 6,418.91 × 3,078.77
  4. Step 4: Simplify right side
    4,650.17x = 19,762,323.14
  5. Step 5: Solve for x
    x = 19,762,323.14/4,650.17
  6. Step 6: Final answer
    x = 4,249.81

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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.