Home / 6,428.04-9,643.27-2,918.30

Finding the Fourth Proportional to 6,428.04, 9,643.27 and 2,918.30

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Solution

The fourth proportional to 6,428.04, 9,643.27 and 2,918.30 is: 4,377.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.04 : 9,643.27 = 2,918.30 : x
  2. Step 2: Convert to fraction form
    6,428.04/9,643.27 = 2,918.30/x
  3. Step 3: Cross multiply
    6,428.04x = 9,643.27 × 2,918.30
  4. Step 4: Simplify right side
    6,428.04x = 28,141,910.27
  5. Step 5: Solve for x
    x = 28,141,910.27/6,428.04
  6. Step 6: Final answer
    x = 4,377.99

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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.