Home / 2,629.96-3,629.28-1,434.90

Finding the Fourth Proportional to 2,629.96, 3,629.28 and 1,434.90

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Solution

The fourth proportional to 2,629.96, 3,629.28 and 1,434.90 is: 1,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.96 : 3,629.28 = 1,434.90 : x
  2. Step 2: Convert to fraction form
    2,629.96/3,629.28 = 1,434.90/x
  3. Step 3: Cross multiply
    2,629.96x = 3,629.28 × 1,434.90
  4. Step 4: Simplify right side
    2,629.96x = 5,207,653.87
  5. Step 5: Solve for x
    x = 5,207,653.87/2,629.96
  6. Step 6: Final answer
    x = 1,980.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.