Home / 2,631.55-3,937.59-2,164.99

Finding the Fourth Proportional to 2,631.55, 3,937.59 and 2,164.99

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Solution

The fourth proportional to 2,631.55, 3,937.59 and 2,164.99 is: 3,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.55 : 3,937.59 = 2,164.99 : x
  2. Step 2: Convert to fraction form
    2,631.55/3,937.59 = 2,164.99/x
  3. Step 3: Cross multiply
    2,631.55x = 3,937.59 × 2,164.99
  4. Step 4: Simplify right side
    2,631.55x = 8,524,842.97
  5. Step 5: Solve for x
    x = 8,524,842.97/2,631.55
  6. Step 6: Final answer
    x = 3,239.48

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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.