Home / 7,840.67-11,760.10-2,910.41

Finding the Fourth Proportional to 7,840.67, 11,760.10 and 2,910.41

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Solution

The fourth proportional to 7,840.67, 11,760.10 and 2,910.41 is: 4,365.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.67 : 11,760.10 = 2,910.41 : x
  2. Step 2: Convert to fraction form
    7,840.67/11,760.10 = 2,910.41/x
  3. Step 3: Cross multiply
    7,840.67x = 11,760.10 × 2,910.41
  4. Step 4: Simplify right side
    7,840.67x = 34,226,646.56
  5. Step 5: Solve for x
    x = 34,226,646.56/7,840.67
  6. Step 6: Final answer
    x = 4,365.27

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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.