Home / 1,410.69-2,114.29-629.60

Finding the Fourth Proportional to 1,410.69, 2,114.29 and 629.60

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Solution

The fourth proportional to 1,410.69, 2,114.29 and 629.60 is: 943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.69 : 2,114.29 = 629.60 : x
  2. Step 2: Convert to fraction form
    1,410.69/2,114.29 = 629.60/x
  3. Step 3: Cross multiply
    1,410.69x = 2,114.29 × 629.60
  4. Step 4: Simplify right side
    1,410.69x = 1,331,156.98
  5. Step 5: Solve for x
    x = 1,331,156.98/1,410.69
  6. Step 6: Final answer
    x = 943.62

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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.