Home / 2,175.81-3,261.18-1,003.35

Finding the Fourth Proportional to 2,175.81, 3,261.18 and 1,003.35

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Solution

The fourth proportional to 2,175.81, 3,261.18 and 1,003.35 is: 1,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.81 : 3,261.18 = 1,003.35 : x
  2. Step 2: Convert to fraction form
    2,175.81/3,261.18 = 1,003.35/x
  3. Step 3: Cross multiply
    2,175.81x = 3,261.18 × 1,003.35
  4. Step 4: Simplify right side
    2,175.81x = 3,272,096.96
  5. Step 5: Solve for x
    x = 3,272,096.96/2,175.81
  6. Step 6: Final answer
    x = 1,503.85

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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.