Home / 2,638.28-3,953.50-2,084.24

Finding the Fourth Proportional to 2,638.28, 3,953.50 and 2,084.24

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Solution

The fourth proportional to 2,638.28, 3,953.50 and 2,084.24 is: 3,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.28 : 3,953.50 = 2,084.24 : x
  2. Step 2: Convert to fraction form
    2,638.28/3,953.50 = 2,084.24/x
  3. Step 3: Cross multiply
    2,638.28x = 3,953.50 × 2,084.24
  4. Step 4: Simplify right side
    2,638.28x = 8,240,042.84
  5. Step 5: Solve for x
    x = 8,240,042.84/2,638.28
  6. Step 6: Final answer
    x = 3,123.26

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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.