Home / 1,433.52-2,146.63-945.09

Finding the Fourth Proportional to 1,433.52, 2,146.63 and 945.09

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Solution

The fourth proportional to 1,433.52, 2,146.63 and 945.09 is: 1,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.52 : 2,146.63 = 945.09 : x
  2. Step 2: Convert to fraction form
    1,433.52/2,146.63 = 945.09/x
  3. Step 3: Cross multiply
    1,433.52x = 2,146.63 × 945.09
  4. Step 4: Simplify right side
    1,433.52x = 2,028,756.18
  5. Step 5: Solve for x
    x = 2,028,756.18/1,433.52
  6. Step 6: Final answer
    x = 1,415.23

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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.