Home / 2,999.12-4,499.56-1,539.32

Finding the Fourth Proportional to 2,999.12, 4,499.56 and 1,539.32

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Solution

The fourth proportional to 2,999.12, 4,499.56 and 1,539.32 is: 2,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.12 : 4,499.56 = 1,539.32 : x
  2. Step 2: Convert to fraction form
    2,999.12/4,499.56 = 1,539.32/x
  3. Step 3: Cross multiply
    2,999.12x = 4,499.56 × 1,539.32
  4. Step 4: Simplify right side
    2,999.12x = 6,926,262.70
  5. Step 5: Solve for x
    x = 6,926,262.70/2,999.12
  6. Step 6: Final answer
    x = 2,309.43

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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.