Home / 7,619.30-11,434.05-2,688.95

Finding the Fourth Proportional to 7,619.30, 11,434.05 and 2,688.95

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Solution

The fourth proportional to 7,619.30, 11,434.05 and 2,688.95 is: 4,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.30 : 11,434.05 = 2,688.95 : x
  2. Step 2: Convert to fraction form
    7,619.30/11,434.05 = 2,688.95/x
  3. Step 3: Cross multiply
    7,619.30x = 11,434.05 × 2,688.95
  4. Step 4: Simplify right side
    7,619.30x = 30,745,588.75
  5. Step 5: Solve for x
    x = 30,745,588.75/7,619.30
  6. Step 6: Final answer
    x = 4,035.22

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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.