Home / 7,685.28-11,528.33-2,490.75

Finding the Fourth Proportional to 7,685.28, 11,528.33 and 2,490.75

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Solution

The fourth proportional to 7,685.28, 11,528.33 and 2,490.75 is: 3,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.28 : 11,528.33 = 2,490.75 : x
  2. Step 2: Convert to fraction form
    7,685.28/11,528.33 = 2,490.75/x
  3. Step 3: Cross multiply
    7,685.28x = 11,528.33 × 2,490.75
  4. Step 4: Simplify right side
    7,685.28x = 28,714,175.49
  5. Step 5: Solve for x
    x = 28,714,175.49/7,685.28
  6. Step 6: Final answer
    x = 3,736.26

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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.