Home / 2,664.76-3,674.10-2,191

Finding the Fourth Proportional to 2,664.76, 3,674.10 and 2,191

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Solution

The fourth proportional to 2,664.76, 3,674.10 and 2,191 is: 3,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.76 : 3,674.10 = 2,191 : x
  2. Step 2: Convert to fraction form
    2,664.76/3,674.10 = 2,191/x
  3. Step 3: Cross multiply
    2,664.76x = 3,674.10 × 2,191
  4. Step 4: Simplify right side
    2,664.76x = 8,049,953.10
  5. Step 5: Solve for x
    x = 8,049,953.10/2,664.76
  6. Step 6: Final answer
    x = 3,020.89

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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.