Home / 5,618.45-8,420.58-2,845.82

Finding the Fourth Proportional to 5,618.45, 8,420.58 and 2,845.82

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Solution

The fourth proportional to 5,618.45, 8,420.58 and 2,845.82 is: 4,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.45 : 8,420.58 = 2,845.82 : x
  2. Step 2: Convert to fraction form
    5,618.45/8,420.58 = 2,845.82/x
  3. Step 3: Cross multiply
    5,618.45x = 8,420.58 × 2,845.82
  4. Step 4: Simplify right side
    5,618.45x = 23,963,412.87
  5. Step 5: Solve for x
    x = 23,963,412.87/5,618.45
  6. Step 6: Final answer
    x = 4,265.13

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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.