Home / 6,428.38-9,643.86-2,730.58

Finding the Fourth Proportional to 6,428.38, 9,643.86 and 2,730.58

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Solution

The fourth proportional to 6,428.38, 9,643.86 and 2,730.58 is: 4,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.38 : 9,643.86 = 2,730.58 : x
  2. Step 2: Convert to fraction form
    6,428.38/9,643.86 = 2,730.58/x
  3. Step 3: Cross multiply
    6,428.38x = 9,643.86 × 2,730.58
  4. Step 4: Simplify right side
    6,428.38x = 26,333,331.24
  5. Step 5: Solve for x
    x = 26,333,331.24/6,428.38
  6. Step 6: Final answer
    x = 4,096.42

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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.