Home / 1,951.06-2,928.62-1,306.30

Finding the Fourth Proportional to 1,951.06, 2,928.62 and 1,306.30

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Solution

The fourth proportional to 1,951.06, 2,928.62 and 1,306.30 is: 1,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.06 : 2,928.62 = 1,306.30 : x
  2. Step 2: Convert to fraction form
    1,951.06/2,928.62 = 1,306.30/x
  3. Step 3: Cross multiply
    1,951.06x = 2,928.62 × 1,306.30
  4. Step 4: Simplify right side
    1,951.06x = 3,825,656.31
  5. Step 5: Solve for x
    x = 3,825,656.31/1,951.06
  6. Step 6: Final answer
    x = 1,960.81

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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.