Home / 5,019.06-7,528.98-1,687.80

Finding the Fourth Proportional to 5,019.06, 7,528.98 and 1,687.80

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Solution

The fourth proportional to 5,019.06, 7,528.98 and 1,687.80 is: 2,531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.06 : 7,528.98 = 1,687.80 : x
  2. Step 2: Convert to fraction form
    5,019.06/7,528.98 = 1,687.80/x
  3. Step 3: Cross multiply
    5,019.06x = 7,528.98 × 1,687.80
  4. Step 4: Simplify right side
    5,019.06x = 12,707,412.44
  5. Step 5: Solve for x
    x = 12,707,412.44/5,019.06
  6. Step 6: Final answer
    x = 2,531.83

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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.