Home / 7,621.42-11,432.38-2,623.74

Finding the Fourth Proportional to 7,621.42, 11,432.38 and 2,623.74

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Solution

The fourth proportional to 7,621.42, 11,432.38 and 2,623.74 is: 3,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.42 : 11,432.38 = 2,623.74 : x
  2. Step 2: Convert to fraction form
    7,621.42/11,432.38 = 2,623.74/x
  3. Step 3: Cross multiply
    7,621.42x = 11,432.38 × 2,623.74
  4. Step 4: Simplify right side
    7,621.42x = 29,995,592.70
  5. Step 5: Solve for x
    x = 29,995,592.70/7,621.42
  6. Step 6: Final answer
    x = 3,935.70

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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.