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Finding the Fourth Proportional to 1,695.87, 2,538.41 and 914.76

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Solution

The fourth proportional to 1,695.87, 2,538.41 and 914.76 is: 1,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.87 : 2,538.41 = 914.76 : x
  2. Step 2: Convert to fraction form
    1,695.87/2,538.41 = 914.76/x
  3. Step 3: Cross multiply
    1,695.87x = 2,538.41 × 914.76
  4. Step 4: Simplify right side
    1,695.87x = 2,322,031.36
  5. Step 5: Solve for x
    x = 2,322,031.36/1,695.87
  6. Step 6: Final answer
    x = 1,369.23

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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.