Home / 3,288.96-4,931.58-1,338.87

Finding the Fourth Proportional to 3,288.96, 4,931.58 and 1,338.87

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Solution

The fourth proportional to 3,288.96, 4,931.58 and 1,338.87 is: 2,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.96 : 4,931.58 = 1,338.87 : x
  2. Step 2: Convert to fraction form
    3,288.96/4,931.58 = 1,338.87/x
  3. Step 3: Cross multiply
    3,288.96x = 4,931.58 × 1,338.87
  4. Step 4: Simplify right side
    3,288.96x = 6,602,744.51
  5. Step 5: Solve for x
    x = 6,602,744.51/3,288.96
  6. Step 6: Final answer
    x = 2,007.55

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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.