Home / 1,495.20-2,242.20-629.28

Finding the Fourth Proportional to 1,495.20, 2,242.20 and 629.28

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Solution

The fourth proportional to 1,495.20, 2,242.20 and 629.28 is: 943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.20 : 2,242.20 = 629.28 : x
  2. Step 2: Convert to fraction form
    1,495.20/2,242.20 = 629.28/x
  3. Step 3: Cross multiply
    1,495.20x = 2,242.20 × 629.28
  4. Step 4: Simplify right side
    1,495.20x = 1,410,971.62
  5. Step 5: Solve for x
    x = 1,410,971.62/1,495.20
  6. Step 6: Final answer
    x = 943.67

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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.