Home / 2,769.36-4,154.84-2,280.12

Finding the Fourth Proportional to 2,769.36, 4,154.84 and 2,280.12

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Solution

The fourth proportional to 2,769.36, 4,154.84 and 2,280.12 is: 3,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.36 : 4,154.84 = 2,280.12 : x
  2. Step 2: Convert to fraction form
    2,769.36/4,154.84 = 2,280.12/x
  3. Step 3: Cross multiply
    2,769.36x = 4,154.84 × 2,280.12
  4. Step 4: Simplify right side
    2,769.36x = 9,473,533.78
  5. Step 5: Solve for x
    x = 9,473,533.78/2,769.36
  6. Step 6: Final answer
    x = 3,420.84

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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.