Home / 2,491.62-3,439.80-1,736.49

Finding the Fourth Proportional to 2,491.62, 3,439.80 and 1,736.49

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Solution

The fourth proportional to 2,491.62, 3,439.80 and 1,736.49 is: 2,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.62 : 3,439.80 = 1,736.49 : x
  2. Step 2: Convert to fraction form
    2,491.62/3,439.80 = 1,736.49/x
  3. Step 3: Cross multiply
    2,491.62x = 3,439.80 × 1,736.49
  4. Step 4: Simplify right side
    2,491.62x = 5,973,178.30
  5. Step 5: Solve for x
    x = 5,973,178.30/2,491.62
  6. Step 6: Final answer
    x = 2,397.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.