Home / 3,439.75-5,159.68-1,491.91

Finding the Fourth Proportional to 3,439.75, 5,159.68 and 1,491.91

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Solution

The fourth proportional to 3,439.75, 5,159.68 and 1,491.91 is: 2,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.75 : 5,159.68 = 1,491.91 : x
  2. Step 2: Convert to fraction form
    3,439.75/5,159.68 = 1,491.91/x
  3. Step 3: Cross multiply
    3,439.75x = 5,159.68 × 1,491.91
  4. Step 4: Simplify right side
    3,439.75x = 7,697,778.19
  5. Step 5: Solve for x
    x = 7,697,778.19/3,439.75
  6. Step 6: Final answer
    x = 2,237.89

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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.