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Finding the Fourth Proportional to 1,755.90, 2,423.03 and 969.93

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Solution

The fourth proportional to 1,755.90, 2,423.03 and 969.93 is: 1,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.90 : 2,423.03 = 969.93 : x
  2. Step 2: Convert to fraction form
    1,755.90/2,423.03 = 969.93/x
  3. Step 3: Cross multiply
    1,755.90x = 2,423.03 × 969.93
  4. Step 4: Simplify right side
    1,755.90x = 2,350,164.64
  5. Step 5: Solve for x
    x = 2,350,164.64/1,755.90
  6. Step 6: Final answer
    x = 1,338.44

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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.