Home / 1,087.38-1,628.88-501.56

Finding the Fourth Proportional to 1,087.38, 1,628.88 and 501.56

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Solution

The fourth proportional to 1,087.38, 1,628.88 and 501.56 is: 751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.38 : 1,628.88 = 501.56 : x
  2. Step 2: Convert to fraction form
    1,087.38/1,628.88 = 501.56/x
  3. Step 3: Cross multiply
    1,087.38x = 1,628.88 × 501.56
  4. Step 4: Simplify right side
    1,087.38x = 816,972.91
  5. Step 5: Solve for x
    x = 816,972.91/1,087.38
  6. Step 6: Final answer
    x = 751.32

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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.