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Finding the Fourth Proportional to 1,174.30, 1,769.53 and 973.39

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Solution

The fourth proportional to 1,174.30, 1,769.53 and 973.39 is: 1,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.30 : 1,769.53 = 973.39 : x
  2. Step 2: Convert to fraction form
    1,174.30/1,769.53 = 973.39/x
  3. Step 3: Cross multiply
    1,174.30x = 1,769.53 × 973.39
  4. Step 4: Simplify right side
    1,174.30x = 1,722,442.81
  5. Step 5: Solve for x
    x = 1,722,442.81/1,174.30
  6. Step 6: Final answer
    x = 1,466.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.