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Finding the Fourth Proportional to 2,084.72, 3,127.08 and 623.84

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Solution

The fourth proportional to 2,084.72, 3,127.08 and 623.84 is: 935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.72 : 3,127.08 = 623.84 : x
  2. Step 2: Convert to fraction form
    2,084.72/3,127.08 = 623.84/x
  3. Step 3: Cross multiply
    2,084.72x = 3,127.08 × 623.84
  4. Step 4: Simplify right side
    2,084.72x = 1,950,781.95
  5. Step 5: Solve for x
    x = 1,950,781.95/2,084.72
  6. Step 6: Final answer
    x = 935.75

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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.