Home / 1,922.52-2,652.60-1,392.18

Finding the Fourth Proportional to 1,922.52, 2,652.60 and 1,392.18

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Solution

The fourth proportional to 1,922.52, 2,652.60 and 1,392.18 is: 1,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.52 : 2,652.60 = 1,392.18 : x
  2. Step 2: Convert to fraction form
    1,922.52/2,652.60 = 1,392.18/x
  3. Step 3: Cross multiply
    1,922.52x = 2,652.60 × 1,392.18
  4. Step 4: Simplify right side
    1,922.52x = 3,692,896.67
  5. Step 5: Solve for x
    x = 3,692,896.67/1,922.52
  6. Step 6: Final answer
    x = 1,920.86

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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.