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Finding the Fourth Proportional to 2,438.66, 3,658.84 and 795.20

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Solution

The fourth proportional to 2,438.66, 3,658.84 and 795.20 is: 1,193.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.66 : 3,658.84 = 795.20 : x
  2. Step 2: Convert to fraction form
    2,438.66/3,658.84 = 795.20/x
  3. Step 3: Cross multiply
    2,438.66x = 3,658.84 × 795.20
  4. Step 4: Simplify right side
    2,438.66x = 2,909,509.57
  5. Step 5: Solve for x
    x = 2,909,509.57/2,438.66
  6. Step 6: Final answer
    x = 1,193.08

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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.