Home / 5,873.87-8,107.36-3,988.60

Finding the Fourth Proportional to 5,873.87, 8,107.36 and 3,988.60

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Solution

The fourth proportional to 5,873.87, 8,107.36 and 3,988.60 is: 5,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,873.87 : 8,107.36 = 3,988.60 : x
  2. Step 2: Convert to fraction form
    5,873.87/8,107.36 = 3,988.60/x
  3. Step 3: Cross multiply
    5,873.87x = 8,107.36 × 3,988.60
  4. Step 4: Simplify right side
    5,873.87x = 32,336,985.86
  5. Step 5: Solve for x
    x = 32,336,985.86/5,873.87
  6. Step 6: Final answer
    x = 5,505.22

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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.