Home / 4,748.56-7,122.20-1,286.08

Finding the Fourth Proportional to 4,748.56, 7,122.20 and 1,286.08

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Solution

The fourth proportional to 4,748.56, 7,122.20 and 1,286.08 is: 1,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.56 : 7,122.20 = 1,286.08 : x
  2. Step 2: Convert to fraction form
    4,748.56/7,122.20 = 1,286.08/x
  3. Step 3: Cross multiply
    4,748.56x = 7,122.20 × 1,286.08
  4. Step 4: Simplify right side
    4,748.56x = 9,159,718.98
  5. Step 5: Solve for x
    x = 9,159,718.98/4,748.56
  6. Step 6: Final answer
    x = 1,928.95

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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.