Home / 6,329.60-9,502.20-3,989.60

Finding the Fourth Proportional to 6,329.60, 9,502.20 and 3,989.60

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Solution

The fourth proportional to 6,329.60, 9,502.20 and 3,989.60 is: 5,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,329.60 : 9,502.20 = 3,989.60 : x
  2. Step 2: Convert to fraction form
    6,329.60/9,502.20 = 3,989.60/x
  3. Step 3: Cross multiply
    6,329.60x = 9,502.20 × 3,989.60
  4. Step 4: Simplify right side
    6,329.60x = 37,909,977.12
  5. Step 5: Solve for x
    x = 37,909,977.12/6,329.60
  6. Step 6: Final answer
    x = 5,989.32

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1.5x scale

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.