Home / 2,810.90-3,877.43-1,631.82

Finding the Fourth Proportional to 2,810.90, 3,877.43 and 1,631.82

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Solution

The fourth proportional to 2,810.90, 3,877.43 and 1,631.82 is: 2,250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.90 : 3,877.43 = 1,631.82 : x
  2. Step 2: Convert to fraction form
    2,810.90/3,877.43 = 1,631.82/x
  3. Step 3: Cross multiply
    2,810.90x = 3,877.43 × 1,631.82
  4. Step 4: Simplify right side
    2,810.90x = 6,327,267.82
  5. Step 5: Solve for x
    x = 6,327,267.82/2,810.90
  6. Step 6: Final answer
    x = 2,250.98

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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.