Home / 10,240-15,361.21-2,844.70

Finding the Fourth Proportional to 10,240, 15,361.21 and 2,844.70

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Solution

The fourth proportional to 10,240, 15,361.21 and 2,844.70 is: 4,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240 : 15,361.21 = 2,844.70 : x
  2. Step 2: Convert to fraction form
    10,240/15,361.21 = 2,844.70/x
  3. Step 3: Cross multiply
    10,240x = 15,361.21 × 2,844.70
  4. Step 4: Simplify right side
    10,240x = 43,698,034.09
  5. Step 5: Solve for x
    x = 43,698,034.09/10,240
  6. Step 6: Final answer
    x = 4,267.39

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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.