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Finding the Fourth Proportional to 5,897.82, 8,139 and 3,245.28

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Solution

The fourth proportional to 5,897.82, 8,139 and 3,245.28 is: 4,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,897.82 : 8,139 = 3,245.28 : x
  2. Step 2: Convert to fraction form
    5,897.82/8,139 = 3,245.28/x
  3. Step 3: Cross multiply
    5,897.82x = 8,139 × 3,245.28
  4. Step 4: Simplify right side
    5,897.82x = 26,413,333.92
  5. Step 5: Solve for x
    x = 26,413,333.92/5,897.82
  6. Step 6: Final answer
    x = 4,478.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.