Home / 756.03-1,139.20-622.08

Finding the Fourth Proportional to 756.03, 1,139.20 and 622.08

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Solution

The fourth proportional to 756.03, 1,139.20 and 622.08 is: 937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.03 : 1,139.20 = 622.08 : x
  2. Step 2: Convert to fraction form
    756.03/1,139.20 = 622.08/x
  3. Step 3: Cross multiply
    756.03x = 1,139.20 × 622.08
  4. Step 4: Simplify right side
    756.03x = 708,673.54
  5. Step 5: Solve for x
    x = 708,673.54/756.03
  6. Step 6: Final answer
    x = 937.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.