Home / 1,087.52-1,629.08-501.70

Finding the Fourth Proportional to 1,087.52, 1,629.08 and 501.70

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Solution

The fourth proportional to 1,087.52, 1,629.08 and 501.70 is: 751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.52 : 1,629.08 = 501.70 : x
  2. Step 2: Convert to fraction form
    1,087.52/1,629.08 = 501.70/x
  3. Step 3: Cross multiply
    1,087.52x = 1,629.08 × 501.70
  4. Step 4: Simplify right side
    1,087.52x = 817,309.44
  5. Step 5: Solve for x
    x = 817,309.44/1,087.52
  6. Step 6: Final answer
    x = 751.54

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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.