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Finding the Fourth Proportional to 1,471.41, 2,201.70 and 886.77

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Solution

The fourth proportional to 1,471.41, 2,201.70 and 886.77 is: 1,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.41 : 2,201.70 = 886.77 : x
  2. Step 2: Convert to fraction form
    1,471.41/2,201.70 = 886.77/x
  3. Step 3: Cross multiply
    1,471.41x = 2,201.70 × 886.77
  4. Step 4: Simplify right side
    1,471.41x = 1,952,401.51
  5. Step 5: Solve for x
    x = 1,952,401.51/1,471.41
  6. Step 6: Final answer
    x = 1,326.89

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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.