Home / 7,783.28-11,674.54-3,621.80

Finding the Fourth Proportional to 7,783.28, 11,674.54 and 3,621.80

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Solution

The fourth proportional to 7,783.28, 11,674.54 and 3,621.80 is: 5,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.28 : 11,674.54 = 3,621.80 : x
  2. Step 2: Convert to fraction form
    7,783.28/11,674.54 = 3,621.80/x
  3. Step 3: Cross multiply
    7,783.28x = 11,674.54 × 3,621.80
  4. Step 4: Simplify right side
    7,783.28x = 42,282,848.97
  5. Step 5: Solve for x
    x = 42,282,848.97/7,783.28
  6. Step 6: Final answer
    x = 5,432.52

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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.