Home / 3,486.90-5,230.59-1,539.12

Finding the Fourth Proportional to 3,486.90, 5,230.59 and 1,539.12

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Solution

The fourth proportional to 3,486.90, 5,230.59 and 1,539.12 is: 2,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.90 : 5,230.59 = 1,539.12 : x
  2. Step 2: Convert to fraction form
    3,486.90/5,230.59 = 1,539.12/x
  3. Step 3: Cross multiply
    3,486.90x = 5,230.59 × 1,539.12
  4. Step 4: Simplify right side
    3,486.90x = 8,050,505.68
  5. Step 5: Solve for x
    x = 8,050,505.68/3,486.90
  6. Step 6: Final answer
    x = 2,308.79

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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.