Home / 5,121.56-7,674.95-2,930.92

Finding the Fourth Proportional to 5,121.56, 7,674.95 and 2,930.92

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Solution

The fourth proportional to 5,121.56, 7,674.95 and 2,930.92 is: 4,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.56 : 7,674.95 = 2,930.92 : x
  2. Step 2: Convert to fraction form
    5,121.56/7,674.95 = 2,930.92/x
  3. Step 3: Cross multiply
    5,121.56x = 7,674.95 × 2,930.92
  4. Step 4: Simplify right side
    5,121.56x = 22,494,652.59
  5. Step 5: Solve for x
    x = 22,494,652.59/5,121.56
  6. Step 6: Final answer
    x = 4,392.15

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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.