Home / 5,113.80-7,057.40-2,845.43

Finding the Fourth Proportional to 5,113.80, 7,057.40 and 2,845.43

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Solution

The fourth proportional to 5,113.80, 7,057.40 and 2,845.43 is: 3,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.80 : 7,057.40 = 2,845.43 : x
  2. Step 2: Convert to fraction form
    5,113.80/7,057.40 = 2,845.43/x
  3. Step 3: Cross multiply
    5,113.80x = 7,057.40 × 2,845.43
  4. Step 4: Simplify right side
    5,113.80x = 20,081,314.63
  5. Step 5: Solve for x
    x = 20,081,314.63/5,113.80
  6. Step 6: Final answer
    x = 3,926.89

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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.