Home / 4,913.50-7,372.26-2,138.74

Finding the Fourth Proportional to 4,913.50, 7,372.26 and 2,138.74

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Solution

The fourth proportional to 4,913.50, 7,372.26 and 2,138.74 is: 3,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.50 : 7,372.26 = 2,138.74 : x
  2. Step 2: Convert to fraction form
    4,913.50/7,372.26 = 2,138.74/x
  3. Step 3: Cross multiply
    4,913.50x = 7,372.26 × 2,138.74
  4. Step 4: Simplify right side
    4,913.50x = 15,767,347.35
  5. Step 5: Solve for x
    x = 15,767,347.35/4,913.50
  6. Step 6: Final answer
    x = 3,208.98

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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.