Home / 7,777.61-11,664.33-3,394.07

Finding the Fourth Proportional to 7,777.61, 11,664.33 and 3,394.07

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Solution

The fourth proportional to 7,777.61, 11,664.33 and 3,394.07 is: 5,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.61 : 11,664.33 = 3,394.07 : x
  2. Step 2: Convert to fraction form
    7,777.61/11,664.33 = 3,394.07/x
  3. Step 3: Cross multiply
    7,777.61x = 11,664.33 × 3,394.07
  4. Step 4: Simplify right side
    7,777.61x = 39,589,494.20
  5. Step 5: Solve for x
    x = 39,589,494.20/7,777.61
  6. Step 6: Final answer
    x = 5,090.19

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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.