Home / 3,151.56-4,349.15-1,956.11

Finding the Fourth Proportional to 3,151.56, 4,349.15 and 1,956.11

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Solution

The fourth proportional to 3,151.56, 4,349.15 and 1,956.11 is: 2,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.56 : 4,349.15 = 1,956.11 : x
  2. Step 2: Convert to fraction form
    3,151.56/4,349.15 = 1,956.11/x
  3. Step 3: Cross multiply
    3,151.56x = 4,349.15 × 1,956.11
  4. Step 4: Simplify right side
    3,151.56x = 8,507,384.28
  5. Step 5: Solve for x
    x = 8,507,384.28/3,151.56
  6. Step 6: Final answer
    x = 2,699.42

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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.