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Finding the Fourth Proportional to 1,775.50, 2,450.20 and 967.95

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Solution

The fourth proportional to 1,775.50, 2,450.20 and 967.95 is: 1,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.50 : 2,450.20 = 967.95 : x
  2. Step 2: Convert to fraction form
    1,775.50/2,450.20 = 967.95/x
  3. Step 3: Cross multiply
    1,775.50x = 2,450.20 × 967.95
  4. Step 4: Simplify right side
    1,775.50x = 2,371,673.21
  5. Step 5: Solve for x
    x = 2,371,673.21/1,775.50
  6. Step 6: Final answer
    x = 1,335.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.