Home / 1,434.04-2,149.44-1,087.36

Finding the Fourth Proportional to 1,434.04, 2,149.44 and 1,087.36

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Solution

The fourth proportional to 1,434.04, 2,149.44 and 1,087.36 is: 1,629.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.04 : 2,149.44 = 1,087.36 : x
  2. Step 2: Convert to fraction form
    1,434.04/2,149.44 = 1,087.36/x
  3. Step 3: Cross multiply
    1,434.04x = 2,149.44 × 1,087.36
  4. Step 4: Simplify right side
    1,434.04x = 2,337,215.08
  5. Step 5: Solve for x
    x = 2,337,215.08/1,434.04
  6. Step 6: Final answer
    x = 1,629.81

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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.