Home / 4,721-7,069.54-2,845.76

Finding the Fourth Proportional to 4,721, 7,069.54 and 2,845.76

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Solution

The fourth proportional to 4,721, 7,069.54 and 2,845.76 is: 4,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721 : 7,069.54 = 2,845.76 : x
  2. Step 2: Convert to fraction form
    4,721/7,069.54 = 2,845.76/x
  3. Step 3: Cross multiply
    4,721x = 7,069.54 × 2,845.76
  4. Step 4: Simplify right side
    4,721x = 20,118,214.15
  5. Step 5: Solve for x
    x = 20,118,214.15/4,721
  6. Step 6: Final answer
    x = 4,261.43

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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.