Home / 1,872.47-2,810.46-1,377.36

Finding the Fourth Proportional to 1,872.47, 2,810.46 and 1,377.36

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Solution

The fourth proportional to 1,872.47, 2,810.46 and 1,377.36 is: 2,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.47 : 2,810.46 = 1,377.36 : x
  2. Step 2: Convert to fraction form
    1,872.47/2,810.46 = 1,377.36/x
  3. Step 3: Cross multiply
    1,872.47x = 2,810.46 × 1,377.36
  4. Step 4: Simplify right side
    1,872.47x = 3,871,028.26
  5. Step 5: Solve for x
    x = 3,871,028.26/1,872.47
  6. Step 6: Final answer
    x = 2,067.34

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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.