Home / 4,910.20-6,775.98-2,785.57

Finding the Fourth Proportional to 4,910.20, 6,775.98 and 2,785.57

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Solution

The fourth proportional to 4,910.20, 6,775.98 and 2,785.57 is: 3,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.20 : 6,775.98 = 2,785.57 : x
  2. Step 2: Convert to fraction form
    4,910.20/6,775.98 = 2,785.57/x
  3. Step 3: Cross multiply
    4,910.20x = 6,775.98 × 2,785.57
  4. Step 4: Simplify right side
    4,910.20x = 18,874,966.61
  5. Step 5: Solve for x
    x = 18,874,966.61/4,910.20
  6. Step 6: Final answer
    x = 3,844.03

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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.