Home / 1,088.35-1,629.61-625.43

Finding the Fourth Proportional to 1,088.35, 1,629.61 and 625.43

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Solution

The fourth proportional to 1,088.35, 1,629.61 and 625.43 is: 936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.35 : 1,629.61 = 625.43 : x
  2. Step 2: Convert to fraction form
    1,088.35/1,629.61 = 625.43/x
  3. Step 3: Cross multiply
    1,088.35x = 1,629.61 × 625.43
  4. Step 4: Simplify right side
    1,088.35x = 1,019,206.98
  5. Step 5: Solve for x
    x = 1,019,206.98/1,088.35
  6. Step 6: Final answer
    x = 936.47

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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.