Home / 5,130.96-7,683.84-3,276.60

Finding the Fourth Proportional to 5,130.96, 7,683.84 and 3,276.60

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Solution

The fourth proportional to 5,130.96, 7,683.84 and 3,276.60 is: 4,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.96 : 7,683.84 = 3,276.60 : x
  2. Step 2: Convert to fraction form
    5,130.96/7,683.84 = 3,276.60/x
  3. Step 3: Cross multiply
    5,130.96x = 7,683.84 × 3,276.60
  4. Step 4: Simplify right side
    5,130.96x = 25,176,870.14
  5. Step 5: Solve for x
    x = 25,176,870.14/5,130.96
  6. Step 6: Final answer
    x = 4,906.85

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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.