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Finding the Fourth Proportional to 5,056.52, 6,978.01 and 2,818.35

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Solution

The fourth proportional to 5,056.52, 6,978.01 and 2,818.35 is: 3,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056.52 : 6,978.01 = 2,818.35 : x
  2. Step 2: Convert to fraction form
    5,056.52/6,978.01 = 2,818.35/x
  3. Step 3: Cross multiply
    5,056.52x = 6,978.01 × 2,818.35
  4. Step 4: Simplify right side
    5,056.52x = 19,666,451.02
  5. Step 5: Solve for x
    x = 19,666,451.02/5,056.52
  6. Step 6: Final answer
    x = 3,889.33

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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.