Home / 3,011.04-4,513.68-1,280.64

Finding the Fourth Proportional to 3,011.04, 4,513.68 and 1,280.64

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Solution

The fourth proportional to 3,011.04, 4,513.68 and 1,280.64 is: 1,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.04 : 4,513.68 = 1,280.64 : x
  2. Step 2: Convert to fraction form
    3,011.04/4,513.68 = 1,280.64/x
  3. Step 3: Cross multiply
    3,011.04x = 4,513.68 × 1,280.64
  4. Step 4: Simplify right side
    3,011.04x = 5,780,399.16
  5. Step 5: Solve for x
    x = 5,780,399.16/3,011.04
  6. Step 6: Final answer
    x = 1,919.74

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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.