Home / 4,942.71-6,820.90-2,818.58

Finding the Fourth Proportional to 4,942.71, 6,820.90 and 2,818.58

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Solution

The fourth proportional to 4,942.71, 6,820.90 and 2,818.58 is: 3,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.71 : 6,820.90 = 2,818.58 : x
  2. Step 2: Convert to fraction form
    4,942.71/6,820.90 = 2,818.58/x
  3. Step 3: Cross multiply
    4,942.71x = 6,820.90 × 2,818.58
  4. Step 4: Simplify right side
    4,942.71x = 19,225,211.17
  5. Step 5: Solve for x
    x = 19,225,211.17/4,942.71
  6. Step 6: Final answer
    x = 3,889.61

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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.