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Finding the Fourth Proportional to 2,451.47, 3,677.54 and 891.27

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Solution

The fourth proportional to 2,451.47, 3,677.54 and 891.27 is: 1,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.47 : 3,677.54 = 891.27 : x
  2. Step 2: Convert to fraction form
    2,451.47/3,677.54 = 891.27/x
  3. Step 3: Cross multiply
    2,451.47x = 3,677.54 × 891.27
  4. Step 4: Simplify right side
    2,451.47x = 3,277,676.62
  5. Step 5: Solve for x
    x = 3,277,676.62/2,451.47
  6. Step 6: Final answer
    x = 1,337.03

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1.5x scale

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.