Home / 3,286.64-4,535.36-1,889.40

Finding the Fourth Proportional to 3,286.64, 4,535.36 and 1,889.40

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Solution

The fourth proportional to 3,286.64, 4,535.36 and 1,889.40 is: 2,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.64 : 4,535.36 = 1,889.40 : x
  2. Step 2: Convert to fraction form
    3,286.64/4,535.36 = 1,889.40/x
  3. Step 3: Cross multiply
    3,286.64x = 4,535.36 × 1,889.40
  4. Step 4: Simplify right side
    3,286.64x = 8,569,109.18
  5. Step 5: Solve for x
    x = 8,569,109.18/3,286.64
  6. Step 6: Final answer
    x = 2,607.26

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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.