Home / 10,619.64-15,929.48-2,828.44

Finding the Fourth Proportional to 10,619.64, 15,929.48 and 2,828.44

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Solution

The fourth proportional to 10,619.64, 15,929.48 and 2,828.44 is: 4,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.64 : 15,929.48 = 2,828.44 : x
  2. Step 2: Convert to fraction form
    10,619.64/15,929.48 = 2,828.44/x
  3. Step 3: Cross multiply
    10,619.64x = 15,929.48 × 2,828.44
  4. Step 4: Simplify right side
    10,619.64x = 45,055,578.41
  5. Step 5: Solve for x
    x = 45,055,578.41/10,619.64
  6. Step 6: Final answer
    x = 4,242.67

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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.