Home / 1,176.59-1,622.60-756.20

Finding the Fourth Proportional to 1,176.59, 1,622.60 and 756.20

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Solution

The fourth proportional to 1,176.59, 1,622.60 and 756.20 is: 1,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.59 : 1,622.60 = 756.20 : x
  2. Step 2: Convert to fraction form
    1,176.59/1,622.60 = 756.20/x
  3. Step 3: Cross multiply
    1,176.59x = 1,622.60 × 756.20
  4. Step 4: Simplify right side
    1,176.59x = 1,226,998.23
  5. Step 5: Solve for x
    x = 1,226,998.23/1,176.59
  6. Step 6: Final answer
    x = 1,042.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.