Home / 5,980.81-8,257.23-3,857.38

Finding the Fourth Proportional to 5,980.81, 8,257.23 and 3,857.38

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Solution

The fourth proportional to 5,980.81, 8,257.23 and 3,857.38 is: 5,325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.81 : 8,257.23 = 3,857.38 : x
  2. Step 2: Convert to fraction form
    5,980.81/8,257.23 = 3,857.38/x
  3. Step 3: Cross multiply
    5,980.81x = 8,257.23 × 3,857.38
  4. Step 4: Simplify right side
    5,980.81x = 31,851,273.86
  5. Step 5: Solve for x
    x = 31,851,273.86/5,980.81
  6. Step 6: Final answer
    x = 5,325.58

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1.5x scale

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.