Home / 1,922.40-2,652.09-1,176.12

Finding the Fourth Proportional to 1,922.40, 2,652.09 and 1,176.12

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Solution

The fourth proportional to 1,922.40, 2,652.09 and 1,176.12 is: 1,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.40 : 2,652.09 = 1,176.12 : x
  2. Step 2: Convert to fraction form
    1,922.40/2,652.09 = 1,176.12/x
  3. Step 3: Cross multiply
    1,922.40x = 2,652.09 × 1,176.12
  4. Step 4: Simplify right side
    1,922.40x = 3,119,176.09
  5. Step 5: Solve for x
    x = 3,119,176.09/1,922.40
  6. Step 6: Final answer
    x = 1,622.54

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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.