Home / 4,910.25-6,776.16-2,815.77

Finding the Fourth Proportional to 4,910.25, 6,776.16 and 2,815.77

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Solution

The fourth proportional to 4,910.25, 6,776.16 and 2,815.77 is: 3,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.25 : 6,776.16 = 2,815.77 : x
  2. Step 2: Convert to fraction form
    4,910.25/6,776.16 = 2,815.77/x
  3. Step 3: Cross multiply
    4,910.25x = 6,776.16 × 2,815.77
  4. Step 4: Simplify right side
    4,910.25x = 19,080,108.04
  5. Step 5: Solve for x
    x = 19,080,108.04/4,910.25
  6. Step 6: Final answer
    x = 3,885.77

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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.