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Finding the Fourth Proportional to 2,010, 3,014.95 and 549.15

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Solution

The fourth proportional to 2,010, 3,014.95 and 549.15 is: 823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010 : 3,014.95 = 549.15 : x
  2. Step 2: Convert to fraction form
    2,010/3,014.95 = 549.15/x
  3. Step 3: Cross multiply
    2,010x = 3,014.95 × 549.15
  4. Step 4: Simplify right side
    2,010x = 1,655,659.79
  5. Step 5: Solve for x
    x = 1,655,659.79/2,010
  6. Step 6: Final answer
    x = 823.71

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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.