Home / 7,747.54-11,621.10-2,817.28

Finding the Fourth Proportional to 7,747.54, 11,621.10 and 2,817.28

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Solution

The fourth proportional to 7,747.54, 11,621.10 and 2,817.28 is: 4,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.54 : 11,621.10 = 2,817.28 : x
  2. Step 2: Convert to fraction form
    7,747.54/11,621.10 = 2,817.28/x
  3. Step 3: Cross multiply
    7,747.54x = 11,621.10 × 2,817.28
  4. Step 4: Simplify right side
    7,747.54x = 32,739,834.50
  5. Step 5: Solve for x
    x = 32,739,834.50/7,747.54
  6. Step 6: Final answer
    x = 4,225.84

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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.