Home / 2,491.72-3,436.36-1,966.84

Finding the Fourth Proportional to 2,491.72, 3,436.36 and 1,966.84

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Solution

The fourth proportional to 2,491.72, 3,436.36 and 1,966.84 is: 2,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.72 : 3,436.36 = 1,966.84 : x
  2. Step 2: Convert to fraction form
    2,491.72/3,436.36 = 1,966.84/x
  3. Step 3: Cross multiply
    2,491.72x = 3,436.36 × 1,966.84
  4. Step 4: Simplify right side
    2,491.72x = 6,758,770.30
  5. Step 5: Solve for x
    x = 6,758,770.30/2,491.72
  6. Step 6: Final answer
    x = 2,712.49

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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.