Home / 4,455.28-6,689.40-3,163.60

Finding the Fourth Proportional to 4,455.28, 6,689.40 and 3,163.60

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Solution

The fourth proportional to 4,455.28, 6,689.40 and 3,163.60 is: 4,750.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.28 : 6,689.40 = 3,163.60 : x
  2. Step 2: Convert to fraction form
    4,455.28/6,689.40 = 3,163.60/x
  3. Step 3: Cross multiply
    4,455.28x = 6,689.40 × 3,163.60
  4. Step 4: Simplify right side
    4,455.28x = 21,162,585.84
  5. Step 5: Solve for x
    x = 21,162,585.84/4,455.28
  6. Step 6: Final answer
    x = 4,750.00

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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.