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Finding the Fourth Proportional to 2,084.46, 3,126.76 and 623.69

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Solution

The fourth proportional to 2,084.46, 3,126.76 and 623.69 is: 935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.46 : 3,126.76 = 623.69 : x
  2. Step 2: Convert to fraction form
    2,084.46/3,126.76 = 623.69/x
  3. Step 3: Cross multiply
    2,084.46x = 3,126.76 × 623.69
  4. Step 4: Simplify right side
    2,084.46x = 1,950,135.20
  5. Step 5: Solve for x
    x = 1,950,135.20/2,084.46
  6. Step 6: Final answer
    x = 935.56

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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.