Home / 6,515.12-9,773.12-2,619.53

Finding the Fourth Proportional to 6,515.12, 9,773.12 and 2,619.53

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Solution

The fourth proportional to 6,515.12, 9,773.12 and 2,619.53 is: 3,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.12 : 9,773.12 = 2,619.53 : x
  2. Step 2: Convert to fraction form
    6,515.12/9,773.12 = 2,619.53/x
  3. Step 3: Cross multiply
    6,515.12x = 9,773.12 × 2,619.53
  4. Step 4: Simplify right side
    6,515.12x = 25,600,981.03
  5. Step 5: Solve for x
    x = 25,600,981.03/6,515.12
  6. Step 6: Final answer
    x = 3,929.47

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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.