Home / 4,942.16-6,821.64-2,847.76

Finding the Fourth Proportional to 4,942.16, 6,821.64 and 2,847.76

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Solution

The fourth proportional to 4,942.16, 6,821.64 and 2,847.76 is: 3,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.16 : 6,821.64 = 2,847.76 : x
  2. Step 2: Convert to fraction form
    4,942.16/6,821.64 = 2,847.76/x
  3. Step 3: Cross multiply
    4,942.16x = 6,821.64 × 2,847.76
  4. Step 4: Simplify right side
    4,942.16x = 19,426,393.53
  5. Step 5: Solve for x
    x = 19,426,393.53/4,942.16
  6. Step 6: Final answer
    x = 3,930.75

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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.