Home / 2,928.07-4,393.89-1,542.40

Finding the Fourth Proportional to 2,928.07, 4,393.89 and 1,542.40

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Solution

The fourth proportional to 2,928.07, 4,393.89 and 1,542.40 is: 2,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.07 : 4,393.89 = 1,542.40 : x
  2. Step 2: Convert to fraction form
    2,928.07/4,393.89 = 1,542.40/x
  3. Step 3: Cross multiply
    2,928.07x = 4,393.89 × 1,542.40
  4. Step 4: Simplify right side
    2,928.07x = 6,777,135.94
  5. Step 5: Solve for x
    x = 6,777,135.94/2,928.07
  6. Step 6: Final answer
    x = 2,314.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.