Home / 2,352.39-3,528.65-1,311.81

Finding the Fourth Proportional to 2,352.39, 3,528.65 and 1,311.81

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Solution

The fourth proportional to 2,352.39, 3,528.65 and 1,311.81 is: 1,967.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,352.39 : 3,528.65 = 1,311.81 : x
  2. Step 2: Convert to fraction form
    2,352.39/3,528.65 = 1,311.81/x
  3. Step 3: Cross multiply
    2,352.39x = 3,528.65 × 1,311.81
  4. Step 4: Simplify right side
    2,352.39x = 4,628,918.36
  5. Step 5: Solve for x
    x = 4,628,918.36/2,352.39
  6. Step 6: Final answer
    x = 1,967.75

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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.