Home / 1,631.20-2,250.90-967.94

Finding the Fourth Proportional to 1,631.20, 2,250.90 and 967.94

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Solution

The fourth proportional to 1,631.20, 2,250.90 and 967.94 is: 1,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.20 : 2,250.90 = 967.94 : x
  2. Step 2: Convert to fraction form
    1,631.20/2,250.90 = 967.94/x
  3. Step 3: Cross multiply
    1,631.20x = 2,250.90 × 967.94
  4. Step 4: Simplify right side
    1,631.20x = 2,178,736.15
  5. Step 5: Solve for x
    x = 2,178,736.15/1,631.20
  6. Step 6: Final answer
    x = 1,335.66

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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.