Home / 2,087.38-3,130.83-626.53

Finding the Fourth Proportional to 2,087.38, 3,130.83 and 626.53

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Solution

The fourth proportional to 2,087.38, 3,130.83 and 626.53 is: 939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.38 : 3,130.83 = 626.53 : x
  2. Step 2: Convert to fraction form
    2,087.38/3,130.83 = 626.53/x
  3. Step 3: Cross multiply
    2,087.38x = 3,130.83 × 626.53
  4. Step 4: Simplify right side
    2,087.38x = 1,961,558.92
  5. Step 5: Solve for x
    x = 1,961,558.92/2,087.38
  6. Step 6: Final answer
    x = 939.72

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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.