Home / 2,956.52-4,436.40-1,917.20

Finding the Fourth Proportional to 2,956.52, 4,436.40 and 1,917.20

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Solution

The fourth proportional to 2,956.52, 4,436.40 and 1,917.20 is: 2,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.52 : 4,436.40 = 1,917.20 : x
  2. Step 2: Convert to fraction form
    2,956.52/4,436.40 = 1,917.20/x
  3. Step 3: Cross multiply
    2,956.52x = 4,436.40 × 1,917.20
  4. Step 4: Simplify right side
    2,956.52x = 8,505,466.08
  5. Step 5: Solve for x
    x = 8,505,466.08/2,956.52
  6. Step 6: Final answer
    x = 2,876.85

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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.