Home / 1,956.32-2,699.64-1,170.21

Finding the Fourth Proportional to 1,956.32, 2,699.64 and 1,170.21

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Solution

The fourth proportional to 1,956.32, 2,699.64 and 1,170.21 is: 1,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.32 : 2,699.64 = 1,170.21 : x
  2. Step 2: Convert to fraction form
    1,956.32/2,699.64 = 1,170.21/x
  3. Step 3: Cross multiply
    1,956.32x = 2,699.64 × 1,170.21
  4. Step 4: Simplify right side
    1,956.32x = 3,159,145.72
  5. Step 5: Solve for x
    x = 3,159,145.72/1,956.32
  6. Step 6: Final answer
    x = 1,614.85

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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.