Home / 1,052.10-1,577.39-321.28

Finding the Fourth Proportional to 1,052.10, 1,577.39 and 321.28

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Solution

The fourth proportional to 1,052.10, 1,577.39 and 321.28 is: 481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.10 : 1,577.39 = 321.28 : x
  2. Step 2: Convert to fraction form
    1,052.10/1,577.39 = 321.28/x
  3. Step 3: Cross multiply
    1,052.10x = 1,577.39 × 321.28
  4. Step 4: Simplify right side
    1,052.10x = 506,783.86
  5. Step 5: Solve for x
    x = 506,783.86/1,052.10
  6. Step 6: Final answer
    x = 481.69

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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.