Home / 4,723.92-7,085.70-1,213.95

Finding the Fourth Proportional to 4,723.92, 7,085.70 and 1,213.95

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Solution

The fourth proportional to 4,723.92, 7,085.70 and 1,213.95 is: 1,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.92 : 7,085.70 = 1,213.95 : x
  2. Step 2: Convert to fraction form
    4,723.92/7,085.70 = 1,213.95/x
  3. Step 3: Cross multiply
    4,723.92x = 7,085.70 × 1,213.95
  4. Step 4: Simplify right side
    4,723.92x = 8,601,685.52
  5. Step 5: Solve for x
    x = 8,601,685.52/4,723.92
  6. Step 6: Final answer
    x = 1,820.88

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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.