Home / 1,176.35-1,622.30-734.29

Finding the Fourth Proportional to 1,176.35, 1,622.30 and 734.29

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Solution

The fourth proportional to 1,176.35, 1,622.30 and 734.29 is: 1,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.35 : 1,622.30 = 734.29 : x
  2. Step 2: Convert to fraction form
    1,176.35/1,622.30 = 734.29/x
  3. Step 3: Cross multiply
    1,176.35x = 1,622.30 × 734.29
  4. Step 4: Simplify right side
    1,176.35x = 1,191,230.94
  5. Step 5: Solve for x
    x = 1,191,230.94/1,176.35
  6. Step 6: Final answer
    x = 1,012.65

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1.5x scale

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.