Home / 3,507.30-5,261.45-1,285.85

Finding the Fourth Proportional to 3,507.30, 5,261.45 and 1,285.85

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Solution

The fourth proportional to 3,507.30, 5,261.45 and 1,285.85 is: 1,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.30 : 5,261.45 = 1,285.85 : x
  2. Step 2: Convert to fraction form
    3,507.30/5,261.45 = 1,285.85/x
  3. Step 3: Cross multiply
    3,507.30x = 5,261.45 × 1,285.85
  4. Step 4: Simplify right side
    3,507.30x = 6,765,442.21
  5. Step 5: Solve for x
    x = 6,765,442.21/3,507.30
  6. Step 6: Final answer
    x = 1,928.96

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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.