Home / 2,877.41-3,970.94-1,618.43

Finding the Fourth Proportional to 2,877.41, 3,970.94 and 1,618.43

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Solution

The fourth proportional to 2,877.41, 3,970.94 and 1,618.43 is: 2,233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.41 : 3,970.94 = 1,618.43 : x
  2. Step 2: Convert to fraction form
    2,877.41/3,970.94 = 1,618.43/x
  3. Step 3: Cross multiply
    2,877.41x = 3,970.94 × 1,618.43
  4. Step 4: Simplify right side
    2,877.41x = 6,426,660.48
  5. Step 5: Solve for x
    x = 6,426,660.48/2,877.41
  6. Step 6: Final answer
    x = 2,233.49

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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.