Home / 7,619.90-11,426.07-2,425.10

Finding the Fourth Proportional to 7,619.90, 11,426.07 and 2,425.10

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Solution

The fourth proportional to 7,619.90, 11,426.07 and 2,425.10 is: 3,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.90 : 11,426.07 = 2,425.10 : x
  2. Step 2: Convert to fraction form
    7,619.90/11,426.07 = 2,425.10/x
  3. Step 3: Cross multiply
    7,619.90x = 11,426.07 × 2,425.10
  4. Step 4: Simplify right side
    7,619.90x = 27,709,362.36
  5. Step 5: Solve for x
    x = 27,709,362.36/7,619.90
  6. Step 6: Final answer
    x = 3,636.45

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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.