Home / 7,769.10-11,658.90-2,840.24

Finding the Fourth Proportional to 7,769.10, 11,658.90 and 2,840.24

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Solution

The fourth proportional to 7,769.10, 11,658.90 and 2,840.24 is: 4,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.10 : 11,658.90 = 2,840.24 : x
  2. Step 2: Convert to fraction form
    7,769.10/11,658.90 = 2,840.24/x
  3. Step 3: Cross multiply
    7,769.10x = 11,658.90 × 2,840.24
  4. Step 4: Simplify right side
    7,769.10x = 33,114,074.14
  5. Step 5: Solve for x
    x = 33,114,074.14/7,769.10
  6. Step 6: Final answer
    x = 4,262.28

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1.5x scale

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.