Home / 2,921.60-4,377.54-2,054.09

Finding the Fourth Proportional to 2,921.60, 4,377.54 and 2,054.09

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Solution

The fourth proportional to 2,921.60, 4,377.54 and 2,054.09 is: 3,077.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.60 : 4,377.54 = 2,054.09 : x
  2. Step 2: Convert to fraction form
    2,921.60/4,377.54 = 2,054.09/x
  3. Step 3: Cross multiply
    2,921.60x = 4,377.54 × 2,054.09
  4. Step 4: Simplify right side
    2,921.60x = 8,991,861.14
  5. Step 5: Solve for x
    x = 8,991,861.14/2,921.60
  6. Step 6: Final answer
    x = 3,077.72

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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.