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Finding the Fourth Proportional to 1,159.29, 1,743.80 and 964.89

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Solution

The fourth proportional to 1,159.29, 1,743.80 and 964.89 is: 1,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.29 : 1,743.80 = 964.89 : x
  2. Step 2: Convert to fraction form
    1,159.29/1,743.80 = 964.89/x
  3. Step 3: Cross multiply
    1,159.29x = 1,743.80 × 964.89
  4. Step 4: Simplify right side
    1,159.29x = 1,682,570.36
  5. Step 5: Solve for x
    x = 1,682,570.36/1,159.29
  6. Step 6: Final answer
    x = 1,451.38

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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.