Home / 2,084.60-3,127.35-623.90

Finding the Fourth Proportional to 2,084.60, 3,127.35 and 623.90

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Solution

The fourth proportional to 2,084.60, 3,127.35 and 623.90 is: 935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.60 : 3,127.35 = 623.90 : x
  2. Step 2: Convert to fraction form
    2,084.60/3,127.35 = 623.90/x
  3. Step 3: Cross multiply
    2,084.60x = 3,127.35 × 623.90
  4. Step 4: Simplify right side
    2,084.60x = 1,951,153.67
  5. Step 5: Solve for x
    x = 1,951,153.67/2,084.60
  6. Step 6: Final answer
    x = 935.98

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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.