Home / 1,956.45-2,699.96-1,072.34

Finding the Fourth Proportional to 1,956.45, 2,699.96 and 1,072.34

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Solution

The fourth proportional to 1,956.45, 2,699.96 and 1,072.34 is: 1,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.45 : 2,699.96 = 1,072.34 : x
  2. Step 2: Convert to fraction form
    1,956.45/2,699.96 = 1,072.34/x
  3. Step 3: Cross multiply
    1,956.45x = 2,699.96 × 1,072.34
  4. Step 4: Simplify right side
    1,956.45x = 2,895,275.11
  5. Step 5: Solve for x
    x = 2,895,275.11/1,956.45
  6. Step 6: Final answer
    x = 1,479.86

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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.