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Finding the Fourth Proportional to 2,494.40, 3,734.40 and 2,235.20

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Solution

The fourth proportional to 2,494.40, 3,734.40 and 2,235.20 is: 3,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,494.40 : 3,734.40 = 2,235.20 : x
  2. Step 2: Convert to fraction form
    2,494.40/3,734.40 = 2,235.20/x
  3. Step 3: Cross multiply
    2,494.40x = 3,734.40 × 2,235.20
  4. Step 4: Simplify right side
    2,494.40x = 8,347,130.88
  5. Step 5: Solve for x
    x = 8,347,130.88/2,494.40
  6. Step 6: Final answer
    x = 3,346.35

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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.