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Finding the Fourth Proportional to 1,832.68, 2,745.18 and 807.40

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Solution

The fourth proportional to 1,832.68, 2,745.18 and 807.40 is: 1,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832.68 : 2,745.18 = 807.40 : x
  2. Step 2: Convert to fraction form
    1,832.68/2,745.18 = 807.40/x
  3. Step 3: Cross multiply
    1,832.68x = 2,745.18 × 807.40
  4. Step 4: Simplify right side
    1,832.68x = 2,216,458.33
  5. Step 5: Solve for x
    x = 2,216,458.33/1,832.68
  6. Step 6: Final answer
    x = 1,209.41

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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.