Home / 1,511.63-2,269.92-1,021.18

Finding the Fourth Proportional to 1,511.63, 2,269.92 and 1,021.18

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Solution

The fourth proportional to 1,511.63, 2,269.92 and 1,021.18 is: 1,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.63 : 2,269.92 = 1,021.18 : x
  2. Step 2: Convert to fraction form
    1,511.63/2,269.92 = 1,021.18/x
  3. Step 3: Cross multiply
    1,511.63x = 2,269.92 × 1,021.18
  4. Step 4: Simplify right side
    1,511.63x = 2,317,996.91
  5. Step 5: Solve for x
    x = 2,317,996.91/1,511.63
  6. Step 6: Final answer
    x = 1,533.44

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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.