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Finding the Fourth Proportional to 1,159.23, 1,598.34 and 805.46

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Solution

The fourth proportional to 1,159.23, 1,598.34 and 805.46 is: 1,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.23 : 1,598.34 = 805.46 : x
  2. Step 2: Convert to fraction form
    1,159.23/1,598.34 = 805.46/x
  3. Step 3: Cross multiply
    1,159.23x = 1,598.34 × 805.46
  4. Step 4: Simplify right side
    1,159.23x = 1,287,390.94
  5. Step 5: Solve for x
    x = 1,287,390.94/1,159.23
  6. Step 6: Final answer
    x = 1,110.56

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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.