Home / 2,580.56-3,870.38-1,174.64

Finding the Fourth Proportional to 2,580.56, 3,870.38 and 1,174.64

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Solution

The fourth proportional to 2,580.56, 3,870.38 and 1,174.64 is: 1,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.56 : 3,870.38 = 1,174.64 : x
  2. Step 2: Convert to fraction form
    2,580.56/3,870.38 = 1,174.64/x
  3. Step 3: Cross multiply
    2,580.56x = 3,870.38 × 1,174.64
  4. Step 4: Simplify right side
    2,580.56x = 4,546,306.97
  5. Step 5: Solve for x
    x = 4,546,306.97/2,580.56
  6. Step 6: Final answer
    x = 1,761.76

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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.