Home / 4,939.20-7,408.80-2,017.50

Finding the Fourth Proportional to 4,939.20, 7,408.80 and 2,017.50

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Solution

The fourth proportional to 4,939.20, 7,408.80 and 2,017.50 is: 3,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.20 : 7,408.80 = 2,017.50 : x
  2. Step 2: Convert to fraction form
    4,939.20/7,408.80 = 2,017.50/x
  3. Step 3: Cross multiply
    4,939.20x = 7,408.80 × 2,017.50
  4. Step 4: Simplify right side
    4,939.20x = 14,947,243.91
  5. Step 5: Solve for x
    x = 14,947,243.91/4,939.20
  6. Step 6: Final answer
    x = 3,026.25

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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.