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Finding the Fourth Proportional to 1,062.77, 1,592.83 and 771.27

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Solution

The fourth proportional to 1,062.77, 1,592.83 and 771.27 is: 1,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.77 : 1,592.83 = 771.27 : x
  2. Step 2: Convert to fraction form
    1,062.77/1,592.83 = 771.27/x
  3. Step 3: Cross multiply
    1,062.77x = 1,592.83 × 771.27
  4. Step 4: Simplify right side
    1,062.77x = 1,228,501.99
  5. Step 5: Solve for x
    x = 1,228,501.99/1,062.77
  6. Step 6: Final answer
    x = 1,155.94

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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.