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Finding the Fourth Proportional to 2,491.84, 3,752.59 and 2,171.08

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Solution

The fourth proportional to 2,491.84, 3,752.59 and 2,171.08 is: 3,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.84 : 3,752.59 = 2,171.08 : x
  2. Step 2: Convert to fraction form
    2,491.84/3,752.59 = 2,171.08/x
  3. Step 3: Cross multiply
    2,491.84x = 3,752.59 × 2,171.08
  4. Step 4: Simplify right side
    2,491.84x = 8,147,173.10
  5. Step 5: Solve for x
    x = 8,147,173.10/2,491.84
  6. Step 6: Final answer
    x = 3,269.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.