Home / 5,918.05-8,167.40-3,400.57

Finding the Fourth Proportional to 5,918.05, 8,167.40 and 3,400.57

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Solution

The fourth proportional to 5,918.05, 8,167.40 and 3,400.57 is: 4,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.05 : 8,167.40 = 3,400.57 : x
  2. Step 2: Convert to fraction form
    5,918.05/8,167.40 = 3,400.57/x
  3. Step 3: Cross multiply
    5,918.05x = 8,167.40 × 3,400.57
  4. Step 4: Simplify right side
    5,918.05x = 27,773,815.42
  5. Step 5: Solve for x
    x = 27,773,815.42/5,918.05
  6. Step 6: Final answer
    x = 4,693.07

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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.