Home / 1,928.04-2,660.72-1,043.86

Finding the Fourth Proportional to 1,928.04, 2,660.72 and 1,043.86

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Solution

The fourth proportional to 1,928.04, 2,660.72 and 1,043.86 is: 1,440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.04 : 2,660.72 = 1,043.86 : x
  2. Step 2: Convert to fraction form
    1,928.04/2,660.72 = 1,043.86/x
  3. Step 3: Cross multiply
    1,928.04x = 2,660.72 × 1,043.86
  4. Step 4: Simplify right side
    1,928.04x = 2,777,419.18
  5. Step 5: Solve for x
    x = 2,777,419.18/1,928.04
  6. Step 6: Final answer
    x = 1,440.54

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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.