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Finding the Fourth Proportional to 1,471.21, 2,206.29 and 483.77

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Solution

The fourth proportional to 1,471.21, 2,206.29 and 483.77 is: 725.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.21 : 2,206.29 = 483.77 : x
  2. Step 2: Convert to fraction form
    1,471.21/2,206.29 = 483.77/x
  3. Step 3: Cross multiply
    1,471.21x = 2,206.29 × 483.77
  4. Step 4: Simplify right side
    1,471.21x = 1,067,341.52
  5. Step 5: Solve for x
    x = 1,067,341.52/1,471.21
  6. Step 6: Final answer
    x = 725.48

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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.