Home / 7,648.81-11,471.13-2,100.84

Finding the Fourth Proportional to 7,648.81, 11,471.13 and 2,100.84

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Solution

The fourth proportional to 7,648.81, 11,471.13 and 2,100.84 is: 3,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.81 : 11,471.13 = 2,100.84 : x
  2. Step 2: Convert to fraction form
    7,648.81/11,471.13 = 2,100.84/x
  3. Step 3: Cross multiply
    7,648.81x = 11,471.13 × 2,100.84
  4. Step 4: Simplify right side
    7,648.81x = 24,098,947.10
  5. Step 5: Solve for x
    x = 24,098,947.10/7,648.81
  6. Step 6: Final answer
    x = 3,150.68

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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.