Home / 1,966.89-2,951.30-1,236.81

Finding the Fourth Proportional to 1,966.89, 2,951.30 and 1,236.81

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Solution

The fourth proportional to 1,966.89, 2,951.30 and 1,236.81 is: 1,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.89 : 2,951.30 = 1,236.81 : x
  2. Step 2: Convert to fraction form
    1,966.89/2,951.30 = 1,236.81/x
  3. Step 3: Cross multiply
    1,966.89x = 2,951.30 × 1,236.81
  4. Step 4: Simplify right side
    1,966.89x = 3,650,191.17
  5. Step 5: Solve for x
    x = 3,650,191.17/1,966.89
  6. Step 6: Final answer
    x = 1,855.82

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1.5x scale

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.