Home / 4,920.80-6,790.63-2,682.77

Finding the Fourth Proportional to 4,920.80, 6,790.63 and 2,682.77

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Solution

The fourth proportional to 4,920.80, 6,790.63 and 2,682.77 is: 3,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.80 : 6,790.63 = 2,682.77 : x
  2. Step 2: Convert to fraction form
    4,920.80/6,790.63 = 2,682.77/x
  3. Step 3: Cross multiply
    4,920.80x = 6,790.63 × 2,682.77
  4. Step 4: Simplify right side
    4,920.80x = 18,217,698.45
  5. Step 5: Solve for x
    x = 18,217,698.45/4,920.80
  6. Step 6: Final answer
    x = 3,702.18

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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.