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Finding the Fourth Proportional to 1,511.28, 2,268 and 895.68

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Solution

The fourth proportional to 1,511.28, 2,268 and 895.68 is: 1,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.28 : 2,268 = 895.68 : x
  2. Step 2: Convert to fraction form
    1,511.28/2,268 = 895.68/x
  3. Step 3: Cross multiply
    1,511.28x = 2,268 × 895.68
  4. Step 4: Simplify right side
    1,511.28x = 2,031,402.24
  5. Step 5: Solve for x
    x = 2,031,402.24/1,511.28
  6. Step 6: Final answer
    x = 1,344.16

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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.