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Finding the Fourth Proportional to 1,063.80, 1,592.97 and 651.69

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Solution

The fourth proportional to 1,063.80, 1,592.97 and 651.69 is: 975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.80 : 1,592.97 = 651.69 : x
  2. Step 2: Convert to fraction form
    1,063.80/1,592.97 = 651.69/x
  3. Step 3: Cross multiply
    1,063.80x = 1,592.97 × 651.69
  4. Step 4: Simplify right side
    1,063.80x = 1,038,122.62
  5. Step 5: Solve for x
    x = 1,038,122.62/1,063.80
  6. Step 6: Final answer
    x = 975.86

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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.