Home / 3,439.49-5,160.99-1,491.71

Finding the Fourth Proportional to 3,439.49, 5,160.99 and 1,491.71

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Solution

The fourth proportional to 3,439.49, 5,160.99 and 1,491.71 is: 2,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.49 : 5,160.99 = 1,491.71 : x
  2. Step 2: Convert to fraction form
    3,439.49/5,160.99 = 1,491.71/x
  3. Step 3: Cross multiply
    3,439.49x = 5,160.99 × 1,491.71
  4. Step 4: Simplify right side
    3,439.49x = 7,698,700.39
  5. Step 5: Solve for x
    x = 7,698,700.39/3,439.49
  6. Step 6: Final answer
    x = 2,238.33

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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.