Home / 3,487.23-5,231.12-1,539.09

Finding the Fourth Proportional to 3,487.23, 5,231.12 and 1,539.09

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Solution

The fourth proportional to 3,487.23, 5,231.12 and 1,539.09 is: 2,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.23 : 5,231.12 = 1,539.09 : x
  2. Step 2: Convert to fraction form
    3,487.23/5,231.12 = 1,539.09/x
  3. Step 3: Cross multiply
    3,487.23x = 5,231.12 × 1,539.09
  4. Step 4: Simplify right side
    3,487.23x = 8,051,156.79
  5. Step 5: Solve for x
    x = 8,051,156.79/3,487.23
  6. Step 6: Final answer
    x = 2,308.75

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1.5x scale

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.