Home / 1,323.52-1,983.90-501.28

Finding the Fourth Proportional to 1,323.52, 1,983.90 and 501.28

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Solution

The fourth proportional to 1,323.52, 1,983.90 and 501.28 is: 751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.52 : 1,983.90 = 501.28 : x
  2. Step 2: Convert to fraction form
    1,323.52/1,983.90 = 501.28/x
  3. Step 3: Cross multiply
    1,323.52x = 1,983.90 × 501.28
  4. Step 4: Simplify right side
    1,323.52x = 994,489.39
  5. Step 5: Solve for x
    x = 994,489.39/1,323.52
  6. Step 6: Final answer
    x = 751.40

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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.