Home / 2,715.82-4,074.02-867.22

Finding the Fourth Proportional to 2,715.82, 4,074.02 and 867.22

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Solution

The fourth proportional to 2,715.82, 4,074.02 and 867.22 is: 1,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.82 : 4,074.02 = 867.22 : x
  2. Step 2: Convert to fraction form
    2,715.82/4,074.02 = 867.22/x
  3. Step 3: Cross multiply
    2,715.82x = 4,074.02 × 867.22
  4. Step 4: Simplify right side
    2,715.82x = 3,533,071.62
  5. Step 5: Solve for x
    x = 3,533,071.62/2,715.82
  6. Step 6: Final answer
    x = 1,300.92

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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.