Home / 5,665.20-8,497.80-1,769.60

Finding the Fourth Proportional to 5,665.20, 8,497.80 and 1,769.60

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Solution

The fourth proportional to 5,665.20, 8,497.80 and 1,769.60 is: 2,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.20 : 8,497.80 = 1,769.60 : x
  2. Step 2: Convert to fraction form
    5,665.20/8,497.80 = 1,769.60/x
  3. Step 3: Cross multiply
    5,665.20x = 8,497.80 × 1,769.60
  4. Step 4: Simplify right side
    5,665.20x = 15,037,706.88
  5. Step 5: Solve for x
    x = 15,037,706.88/5,665.20
  6. Step 6: Final answer
    x = 2,654.40

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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.