Home / 3,551.28-4,900.64-2,135.81

Finding the Fourth Proportional to 3,551.28, 4,900.64 and 2,135.81

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Solution

The fourth proportional to 3,551.28, 4,900.64 and 2,135.81 is: 2,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.28 : 4,900.64 = 2,135.81 : x
  2. Step 2: Convert to fraction form
    3,551.28/4,900.64 = 2,135.81/x
  3. Step 3: Cross multiply
    3,551.28x = 4,900.64 × 2,135.81
  4. Step 4: Simplify right side
    3,551.28x = 10,466,800.74
  5. Step 5: Solve for x
    x = 10,466,800.74/3,551.28
  6. Step 6: Final answer
    x = 2,947.33

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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.