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Finding the Fourth Proportional to 7,893.89, 10,897.50 and 4,910.68

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Solution

The fourth proportional to 7,893.89, 10,897.50 and 4,910.68 is: 6,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.89 : 10,897.50 = 4,910.68 : x
  2. Step 2: Convert to fraction form
    7,893.89/10,897.50 = 4,910.68/x
  3. Step 3: Cross multiply
    7,893.89x = 10,897.50 × 4,910.68
  4. Step 4: Simplify right side
    7,893.89x = 53,514,135.30
  5. Step 5: Solve for x
    x = 53,514,135.30/7,893.89
  6. Step 6: Final answer
    x = 6,779.19

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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.