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Finding the Fourth Proportional to 1,160.13, 1,600.77 and 662.67

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Solution

The fourth proportional to 1,160.13, 1,600.77 and 662.67 is: 914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.13 : 1,600.77 = 662.67 : x
  2. Step 2: Convert to fraction form
    1,160.13/1,600.77 = 662.67/x
  3. Step 3: Cross multiply
    1,160.13x = 1,600.77 × 662.67
  4. Step 4: Simplify right side
    1,160.13x = 1,060,782.26
  5. Step 5: Solve for x
    x = 1,060,782.26/1,160.13
  6. Step 6: Final answer
    x = 914.36

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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.