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Finding the Fourth Proportional to 1,339.94, 2,010.02 and 366.12

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Solution

The fourth proportional to 1,339.94, 2,010.02 and 366.12 is: 549.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.94 : 2,010.02 = 366.12 : x
  2. Step 2: Convert to fraction form
    1,339.94/2,010.02 = 366.12/x
  3. Step 3: Cross multiply
    1,339.94x = 2,010.02 × 366.12
  4. Step 4: Simplify right side
    1,339.94x = 735,906.69
  5. Step 5: Solve for x
    x = 735,906.69/1,339.94
  6. Step 6: Final answer
    x = 549.21

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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.