Home / 4,942.69-6,821.55-2,818.87

Finding the Fourth Proportional to 4,942.69, 6,821.55 and 2,818.87

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Solution

The fourth proportional to 4,942.69, 6,821.55 and 2,818.87 is: 3,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.69 : 6,821.55 = 2,818.87 : x
  2. Step 2: Convert to fraction form
    4,942.69/6,821.55 = 2,818.87/x
  3. Step 3: Cross multiply
    4,942.69x = 6,821.55 × 2,818.87
  4. Step 4: Simplify right side
    4,942.69x = 19,229,045.59
  5. Step 5: Solve for x
    x = 19,229,045.59/4,942.69
  6. Step 6: Final answer
    x = 3,890.40

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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.