Home / 5,021.20-7,531.80-1,942.48

Finding the Fourth Proportional to 5,021.20, 7,531.80 and 1,942.48

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Solution

The fourth proportional to 5,021.20, 7,531.80 and 1,942.48 is: 2,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.20 : 7,531.80 = 1,942.48 : x
  2. Step 2: Convert to fraction form
    5,021.20/7,531.80 = 1,942.48/x
  3. Step 3: Cross multiply
    5,021.20x = 7,531.80 × 1,942.48
  4. Step 4: Simplify right side
    5,021.20x = 14,630,370.86
  5. Step 5: Solve for x
    x = 14,630,370.86/5,021.20
  6. Step 6: Final answer
    x = 2,913.72

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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.