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Finding the Fourth Proportional to 2,367.88, 3,549.58 and 980.35

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Solution

The fourth proportional to 2,367.88, 3,549.58 and 980.35 is: 1,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,367.88 : 3,549.58 = 980.35 : x
  2. Step 2: Convert to fraction form
    2,367.88/3,549.58 = 980.35/x
  3. Step 3: Cross multiply
    2,367.88x = 3,549.58 × 980.35
  4. Step 4: Simplify right side
    2,367.88x = 3,479,830.75
  5. Step 5: Solve for x
    x = 3,479,830.75/2,367.88
  6. Step 6: Final answer
    x = 1,469.60

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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.