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Finding the Fourth Proportional to 1,096.30, 1,641.23 and 575.06

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Solution

The fourth proportional to 1,096.30, 1,641.23 and 575.06 is: 860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.30 : 1,641.23 = 575.06 : x
  2. Step 2: Convert to fraction form
    1,096.30/1,641.23 = 575.06/x
  3. Step 3: Cross multiply
    1,096.30x = 1,641.23 × 575.06
  4. Step 4: Simplify right side
    1,096.30x = 943,802.85
  5. Step 5: Solve for x
    x = 943,802.85/1,096.30
  6. Step 6: Final answer
    x = 860.90

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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.