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Finding the Fourth Proportional to 5,010.90, 6,910.80 and 3,021.02

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Solution

The fourth proportional to 5,010.90, 6,910.80 and 3,021.02 is: 4,166.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.90 : 6,910.80 = 3,021.02 : x
  2. Step 2: Convert to fraction form
    5,010.90/6,910.80 = 3,021.02/x
  3. Step 3: Cross multiply
    5,010.90x = 6,910.80 × 3,021.02
  4. Step 4: Simplify right side
    5,010.90x = 20,877,665.02
  5. Step 5: Solve for x
    x = 20,877,665.02/5,010.90
  6. Step 6: Final answer
    x = 4,166.45

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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.