Home / 5,056.75-6,978.53-2,818.62

Finding the Fourth Proportional to 5,056.75, 6,978.53 and 2,818.62

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Solution

The fourth proportional to 5,056.75, 6,978.53 and 2,818.62 is: 3,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056.75 : 6,978.53 = 2,818.62 : x
  2. Step 2: Convert to fraction form
    5,056.75/6,978.53 = 2,818.62/x
  3. Step 3: Cross multiply
    5,056.75x = 6,978.53 × 2,818.62
  4. Step 4: Simplify right side
    5,056.75x = 19,669,815.42
  5. Step 5: Solve for x
    x = 19,669,815.42/5,056.75
  6. Step 6: Final answer
    x = 3,889.82

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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.