Home / 2,581.56-3,871.87-1,175.64

Finding the Fourth Proportional to 2,581.56, 3,871.87 and 1,175.64

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Solution

The fourth proportional to 2,581.56, 3,871.87 and 1,175.64 is: 1,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.56 : 3,871.87 = 1,175.64 : x
  2. Step 2: Convert to fraction form
    2,581.56/3,871.87 = 1,175.64/x
  3. Step 3: Cross multiply
    2,581.56x = 3,871.87 × 1,175.64
  4. Step 4: Simplify right side
    2,581.56x = 4,551,925.25
  5. Step 5: Solve for x
    x = 4,551,925.25/2,581.56
  6. Step 6: Final answer
    x = 1,763.25

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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.