Home / 2,138.51-3,202.32-1,810.46

Finding the Fourth Proportional to 2,138.51, 3,202.32 and 1,810.46

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Solution

The fourth proportional to 2,138.51, 3,202.32 and 1,810.46 is: 2,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.51 : 3,202.32 = 1,810.46 : x
  2. Step 2: Convert to fraction form
    2,138.51/3,202.32 = 1,810.46/x
  3. Step 3: Cross multiply
    2,138.51x = 3,202.32 × 1,810.46
  4. Step 4: Simplify right side
    2,138.51x = 5,797,672.27
  5. Step 5: Solve for x
    x = 5,797,672.27/2,138.51
  6. Step 6: Final answer
    x = 2,711.08

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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.