Home / 7,643.48-11,465.42-2,378.51

Finding the Fourth Proportional to 7,643.48, 11,465.42 and 2,378.51

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Solution

The fourth proportional to 7,643.48, 11,465.42 and 2,378.51 is: 3,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.48 : 11,465.42 = 2,378.51 : x
  2. Step 2: Convert to fraction form
    7,643.48/11,465.42 = 2,378.51/x
  3. Step 3: Cross multiply
    7,643.48x = 11,465.42 × 2,378.51
  4. Step 4: Simplify right side
    7,643.48x = 27,270,589.90
  5. Step 5: Solve for x
    x = 27,270,589.90/7,643.48
  6. Step 6: Final answer
    x = 3,567.83

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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.