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Finding the Fourth Proportional to 2,438.40, 3,657.23 and 794.94

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Solution

The fourth proportional to 2,438.40, 3,657.23 and 794.94 is: 1,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.40 : 3,657.23 = 794.94 : x
  2. Step 2: Convert to fraction form
    2,438.40/3,657.23 = 794.94/x
  3. Step 3: Cross multiply
    2,438.40x = 3,657.23 × 794.94
  4. Step 4: Simplify right side
    2,438.40x = 2,907,271.76
  5. Step 5: Solve for x
    x = 2,907,271.76/2,438.40
  6. Step 6: Final answer
    x = 1,192.28

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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.