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Finding the Fourth Proportional to 2,010.47, 3,015.30 and 549.27

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Solution

The fourth proportional to 2,010.47, 3,015.30 and 549.27 is: 823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.47 : 3,015.30 = 549.27 : x
  2. Step 2: Convert to fraction form
    2,010.47/3,015.30 = 549.27/x
  3. Step 3: Cross multiply
    2,010.47x = 3,015.30 × 549.27
  4. Step 4: Simplify right side
    2,010.47x = 1,656,213.83
  5. Step 5: Solve for x
    x = 1,656,213.83/2,010.47
  6. Step 6: Final answer
    x = 823.80

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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.