Home / 4,640.40-6,403.77-2,650.95

Finding the Fourth Proportional to 4,640.40, 6,403.77 and 2,650.95

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Solution

The fourth proportional to 4,640.40, 6,403.77 and 2,650.95 is: 3,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.40 : 6,403.77 = 2,650.95 : x
  2. Step 2: Convert to fraction form
    4,640.40/6,403.77 = 2,650.95/x
  3. Step 3: Cross multiply
    4,640.40x = 6,403.77 × 2,650.95
  4. Step 4: Simplify right side
    4,640.40x = 16,976,074.08
  5. Step 5: Solve for x
    x = 16,976,074.08/4,640.40
  6. Step 6: Final answer
    x = 3,658.32

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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.