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Finding the Fourth Proportional to 1,602.16, 2,403.22 and 955.78

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Solution

The fourth proportional to 1,602.16, 2,403.22 and 955.78 is: 1,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.16 : 2,403.22 = 955.78 : x
  2. Step 2: Convert to fraction form
    1,602.16/2,403.22 = 955.78/x
  3. Step 3: Cross multiply
    1,602.16x = 2,403.22 × 955.78
  4. Step 4: Simplify right side
    1,602.16x = 2,296,949.61
  5. Step 5: Solve for x
    x = 2,296,949.61/1,602.16
  6. Step 6: Final answer
    x = 1,433.66

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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.