Home / 6,428-9,634.72-2,958.08

Finding the Fourth Proportional to 6,428, 9,634.72 and 2,958.08

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Solution

The fourth proportional to 6,428, 9,634.72 and 2,958.08 is: 4,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428 : 9,634.72 = 2,958.08 : x
  2. Step 2: Convert to fraction form
    6,428/9,634.72 = 2,958.08/x
  3. Step 3: Cross multiply
    6,428x = 9,634.72 × 2,958.08
  4. Step 4: Simplify right side
    6,428x = 28,500,272.54
  5. Step 5: Solve for x
    x = 28,500,272.54/6,428
  6. Step 6: Final answer
    x = 4,433.77

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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.