Home / 5,216.90-7,818.42-1,926.96

Finding the Fourth Proportional to 5,216.90, 7,818.42 and 1,926.96

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Solution

The fourth proportional to 5,216.90, 7,818.42 and 1,926.96 is: 2,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.90 : 7,818.42 = 1,926.96 : x
  2. Step 2: Convert to fraction form
    5,216.90/7,818.42 = 1,926.96/x
  3. Step 3: Cross multiply
    5,216.90x = 7,818.42 × 1,926.96
  4. Step 4: Simplify right side
    5,216.90x = 15,065,782.60
  5. Step 5: Solve for x
    x = 15,065,782.60/5,216.90
  6. Step 6: Final answer
    x = 2,887.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.