Home / 7,783.80-11,677.56-2,589.72

Finding the Fourth Proportional to 7,783.80, 11,677.56 and 2,589.72

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Solution

The fourth proportional to 7,783.80, 11,677.56 and 2,589.72 is: 3,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.80 : 11,677.56 = 2,589.72 : x
  2. Step 2: Convert to fraction form
    7,783.80/11,677.56 = 2,589.72/x
  3. Step 3: Cross multiply
    7,783.80x = 11,677.56 × 2,589.72
  4. Step 4: Simplify right side
    7,783.80x = 30,241,610.68
  5. Step 5: Solve for x
    x = 30,241,610.68/7,783.80
  6. Step 6: Final answer
    x = 3,885.20

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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.