Home / 5,606.20-8,409.30-5,087.80

Finding the Fourth Proportional to 5,606.20, 8,409.30 and 5,087.80

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Solution

The fourth proportional to 5,606.20, 8,409.30 and 5,087.80 is: 7,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,606.20 : 8,409.30 = 5,087.80 : x
  2. Step 2: Convert to fraction form
    5,606.20/8,409.30 = 5,087.80/x
  3. Step 3: Cross multiply
    5,606.20x = 8,409.30 × 5,087.80
  4. Step 4: Simplify right side
    5,606.20x = 42,784,836.54
  5. Step 5: Solve for x
    x = 42,784,836.54/5,606.20
  6. Step 6: Final answer
    x = 7,631.70

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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.