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Finding the Fourth Proportional to 2,340.68, 3,511.11 and 953.99

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Solution

The fourth proportional to 2,340.68, 3,511.11 and 953.99 is: 1,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.68 : 3,511.11 = 953.99 : x
  2. Step 2: Convert to fraction form
    2,340.68/3,511.11 = 953.99/x
  3. Step 3: Cross multiply
    2,340.68x = 3,511.11 × 953.99
  4. Step 4: Simplify right side
    2,340.68x = 3,349,563.83
  5. Step 5: Solve for x
    x = 3,349,563.83/2,340.68
  6. Step 6: Final answer
    x = 1,431.02

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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.