Home / 2,877.43-3,970.83-1,635.43

Finding the Fourth Proportional to 2,877.43, 3,970.83 and 1,635.43

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Solution

The fourth proportional to 2,877.43, 3,970.83 and 1,635.43 is: 2,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.43 : 3,970.83 = 1,635.43 : x
  2. Step 2: Convert to fraction form
    2,877.43/3,970.83 = 1,635.43/x
  3. Step 3: Cross multiply
    2,877.43x = 3,970.83 × 1,635.43
  4. Step 4: Simplify right side
    2,877.43x = 6,494,014.51
  5. Step 5: Solve for x
    x = 6,494,014.51/2,877.43
  6. Step 6: Final answer
    x = 2,256.88

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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.