Home / 2,810.43-3,877.79-1,630.89

Finding the Fourth Proportional to 2,810.43, 3,877.79 and 1,630.89

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Solution

The fourth proportional to 2,810.43, 3,877.79 and 1,630.89 is: 2,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.43 : 3,877.79 = 1,630.89 : x
  2. Step 2: Convert to fraction form
    2,810.43/3,877.79 = 1,630.89/x
  3. Step 3: Cross multiply
    2,810.43x = 3,877.79 × 1,630.89
  4. Step 4: Simplify right side
    2,810.43x = 6,324,240.78
  5. Step 5: Solve for x
    x = 6,324,240.78/2,810.43
  6. Step 6: Final answer
    x = 2,250.28

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1.5x scale

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.