Home / 7,686.09-11,530.35-2,490.75

Finding the Fourth Proportional to 7,686.09, 11,530.35 and 2,490.75

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Solution

The fourth proportional to 7,686.09, 11,530.35 and 2,490.75 is: 3,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.09 : 11,530.35 = 2,490.75 : x
  2. Step 2: Convert to fraction form
    7,686.09/11,530.35 = 2,490.75/x
  3. Step 3: Cross multiply
    7,686.09x = 11,530.35 × 2,490.75
  4. Step 4: Simplify right side
    7,686.09x = 28,719,219.26
  5. Step 5: Solve for x
    x = 28,719,219.26/7,686.09
  6. Step 6: Final answer
    x = 3,736.52

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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.